Author Topic: 2010 Reference and Translation Requests  (Read 4063 times)

nk40ouvm

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Re: July 2010 Reference Request Thread
« Reply #120 on: July 16, 2010, 01:42:49 AM »
@no1uno

Amino Alcohols. VII. Phenolic Arylpropanolamines

Hartung,Walter;Munch,James;Miller,Ellis;Crossley,Frank

J. Am. Chem. Soc.
Vol.53(11) 1931 pp.4149–4160
DOI: 10.1021/ja01362a033
Abstract: http://pubs.acs.org/doi/abs/10.1021/ja01362a033

Abstract

Studies on compounds that produce a rise in blood pressure, ie. with ephedrine, epinephrine, tyramine and related substances, indicate that certain pharmacological effects are unquestionably associated with definite elemental groups in the structure of the active molecule. For example, it has been established that: (1) the optimum skeleton for pressor activity is found in compounds having a phenyl and an amino group (or substituted amino group) attached to adjacent carbons of an aliphatic chain. (2) Compounds containing two or three carbons in the aliphatic chain possess maximum pressor activity. (3) Compounds with the three carbon side chain are active on the blood pressure after oral administration. (4) A secondary alcoholic hydroxyl attached to the carbon bearing the phenyl serves to detoxicate very markedly and perhaps to increase the activity of the molecule. (5) Primary amines tend to be more active and less toxic than the corresponding methylated secondary amines, and if the amino group is further methylated or if the size of the alkyl is increased, there is a corresponding decrease in activity and increase in toxicity.
« Last Edit: July 16, 2010, 03:51:53 AM by no1uno »

java

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Re: July 2010 Reference Request Thread
« Reply #121 on: July 19, 2010, 02:21:17 PM »


Amino Alcohols. III. The Potentiation of the Pressor Action of Epinephrine by Arylpropanolamines
Munch,James;Hartung,Walter
J. American. Pharmaceutical Assoc.
1929, Vol.40(3), pp.356-361
DOI: 10.1002/jps.3080190411


Abstract
The bioassay of ephedrine has been complicated by the findings (1, 5 and 6) that successive intravenous injections of the same quantity to dogs or cats give progressively smaller rises in blood pressure. To determine the pressor activity of ephedrine and its related homologues, Chen used the method first developed by Elliot (3) for the assay of epinephrine. Decerebate cats are injected intravenously with varying doses of a standard solution of ephinephrine, after which a single injection of ephedrine or related drug is given intravenously. The increase in blood pressure produced by this single injection is compared with the rises in the epinephrine series and the relative potency determined.





Amino Alcohols. XV. p-Aminopropadrine
Hartung,Walter;Foster,Carroll
J. American. Pharmaceutical Assoc.
1945, Vol.35(1),  pp.15-18
DOI: 10.1002/jps.3030350105


Abstract
Introduced into clinical practice as "Ephetonal" without adequate pharmacological background (1) p-aminoephedrine (2) is reported to possess activity similar, in many respects, to its p-hydroxy isoester. It is well tolerated and differs from ephedrine in that it is appreciably less toxic (3), does not cause tachyphylaxis and apparently causes a rise in the blood sugar level (4).




Amino alcohols. XVIII. Reduction studies on arylglyoxylohydroxamyl chlorides and amides
Larocca,Joseph; Walter H. Hartung,Walter;Levin,Nathan
J. American. Pharmaceutical Assoc.
1950, Vol.40(3),  pp.140-142
DOI: 10.1002/jps.3030400307


Abstract
A method for the preparation of arylgly-oxylohydroxamamides from aliphatic and aromatic amines is described. The reaction has been applied to two aromatic amines, eight aliphatic amines, and to ammonia. Reduction studies of the compounds prepared are reported.

« Last Edit: July 19, 2010, 02:27:27 PM by java »
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Re: July 2010 Reference Request Thread
« Reply #122 on: July 19, 2010, 02:28:30 PM »
Diagnosing Consecutive Reactions of Hypochlorite: pH and Oxidative Decarboxylation/Halogenation
Gilliote,Benjamin;Saunders,Cynthia;Wall,Kevin;Landolt,Robert
J. Org. Chem.
1986, Vol.51(16), pp.3233–3234
DOI: 10.1021/jo00366a040


Abstract
In addition to the classic "haloform" reaction of methyl ketones, trihalomethanes result readily from the hypohalous acid/hypohalite reactions of certain carboxylic acids and amino acids, as well as from activated B-diketones, meta-dihydroxylated aromatics, and quinones. With some of these substrates, halogenation is but one component of a complex series of competitive and/or consecutive reactions.
« Last Edit: July 19, 2010, 02:31:43 PM by java »
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Re: July 2010 Reference Request Thread
« Reply #123 on: July 19, 2010, 02:38:38 PM »
Amino alcohols. XVII. Arylethanolamines
Simonoff,Robert;Hartung,Walter
J. American Pharmaceutical Assoc.
1946, Vol.35(10), pp.306-309
DOI: 10.1002/jps.3030351006


Abstract
Aracyl chlorides, Ar-CO-CH2Cl, were allowed to react with benzylamine or dibenzylamine to form aracylamines. These were then subjected to hydrogenolytic debenzylation, yielding primary aracylamines, ArCOCH2NH2; continued catalytic reduction, without previous isolation of the amino ketone, formed the corresponding arylethanolamines.
« Last Edit: July 19, 2010, 02:41:04 PM by java »
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Re: July 2010 Reference Request Thread
« Reply #124 on: July 19, 2010, 02:50:29 PM »
Selective Preparation of a,a-Dichloroketones with Copper(II) Chloride
Nobrega,Jose;Goncalves,Simone;Peppe,Clovis
Synth.Comm.
2002, Vol.32(24),  pp.3711-3717
DOI: 10.1081/SCC-120015383


Abstract
Aryl and enolizable alkyl ketones react with copper(II) chloride in dimethylformamide to produce the corresponding agr,agr-dichloroketone in high yields. Remarkable qualities of the process are high selectivity towards these substrates, undetected polychlorinated by-products, easy work-up, commercially available reagents and HCl as the only waste stream.

Keywords:Dichloroketones;Dichlorination;Copper(II) chloride
« Last Edit: July 19, 2010, 02:57:09 PM by no1uno »
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java

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Re: July 2010 Reference Request Thread
« Reply #125 on: July 19, 2010, 02:52:59 PM »
Synthesis of 2-Arylethylamines by the Curtius Rearrangement
Matthias Schulze
Synthetic Communications
2010, Volume 40, Issue 10,  pages 1461 - 1476
DOI: 10.1080/00397910903097302


Abstract
2-Arylethylamine derivatives were synthesized using the Curtius reaction and with three different methods of preparing the acyl azide functional group. Carbamates derived from isocyanate were convenient protecting groups for alkylation of amines. Starting from benzaldehyde, amphetamine was prepared in three steps through an oxazolidin-2-one intermediate in 62% overall yield.

Keywords: Curtius rearrangement; isocyanate; oxazolidin-2-one; potassium tert-butoxide
« Last Edit: July 19, 2010, 02:54:52 PM by java »
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Re: March 2010 - Reference & Translation Request Thread
« Reply #126 on: July 19, 2010, 04:10:49 PM »
Die Synthese optisch aktiver N-Monomethyl-Aminosäuren
P. Quitt, J. Hellerbach, K. Vogler
Helvetica Chimica Acta
1963, Volume 46 Issue 1, Pages 327 - 333
doi.10.1002/hlca.19630460133


Abstract
A synthesis of optically active N-monomethylated amino acids (V) is described. It involves a three-step process, starting from optically active amino acids (I) which are converted into their benzyl derivatives (III), subsequently methylated (IV) and finally hydrogenolyzed. The reaction sequence proceeds without racemization.



Note. Can you translate the experimental section at least ans post it , i would be interested to read it...thanks...java
« Last Edit: July 19, 2010, 04:15:08 PM by java »
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Re: March 2010 - Reference & Translation Request Thread
« Reply #127 on: July 19, 2010, 04:30:19 PM »
Modern methods for the radical deoxygenation of alcohols
Wolfgang Hartwig
Tetrahedron
1983,  Volume 39, Issue 16, Pages 2609-2645
doi:10.1016/S0040-4020(01)91972-6 [/color]
« Last Edit: July 19, 2010, 04:35:41 PM by java »
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Re: March 2010 - Reference & Translation Request Thread
« Reply #128 on: July 19, 2010, 04:47:02 PM »
SYNTHESIS OF ALKYL HYDROGEN ALKYLPHOSPHONATES
Andreacute Pienaar a; Cornelis M. Erasmus a; Mauritz Wentzel a;Eugene H. Cowley
Phosphorus, Sulfur, and Silicon and the Related Elements
1999,  Volume 148, Issue 1,  pages 149 - 159
DOI: 10.1080/10426509908037007[/color]





Synthesis of Alkyl Methylphosphonic Acid Esters
G. M. Mong a; S. D. Harvey a;J. A. Campbell [
Phosphorus, Sulfur, and Silicon and the Related Elements
2005, Volume 180, Issue 8, pages 1885 - 1891
DOI: 10.1080/104265090889602[/color]


« Last Edit: July 19, 2010, 04:55:58 PM by java »
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Re: March 2010 - Reference & Translation Request Thread
« Reply #129 on: July 19, 2010, 05:02:39 PM »
The Catalytic Oxidation of Benzoin to Benzil
Marvin Weiss, Mildred Appel
J. Am. Chem. Soc.
1948, 70 (11), pp 3666–3667
DOI: 10.1021/ja01191a036
« Last Edit: July 19, 2010, 05:04:35 PM by java »
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Re: March 2010 - Reference & Translation Request Thread
« Reply #130 on: July 19, 2010, 05:06:42 PM »

Photoinduced nucleophilic addition of ammonia and alkylamines to methoxy-substituted styrene derivatives
Toshiaki Yamashita
Tetrahedron
1994, Volume 50 (Issue 31), pp.9275-9286
DOI: 10.1016/S0040-4020(01)85505-8[/color]

Abstract
The photoaminations of trans-1-arylpropenes (aryl = 2-methoxyphenyl (1), 3-methoxyphenyl (2), 3,4-dimethoxyphenyl (3), and 4-methoxyphenyl (4)) with NH3, i-PrNH2, and t-BuNH2 (RNH2) in the presence of p-dicyanobenzene (p-DCB) gave 2-alkylamino-1-arylpropanes (9) and/or 2-alkylamino-1-aryl-1-(4-cyanophenyl)propanes (10). The photoaminations of 1,2-dihydro-7-methoxynaphthalenes (6–8) with RNH2 in the presence of p-DCB gave mainly 2-alkylamino-1-(4-cyanophenyl)-6-methoxy-1,2,3,4-tetrahydronaphthalenes (13). The photoamination of trans-1-(3,5-dimethoxyphenyl)propene (5) with i-PrNH2 occurred at aromatic ring to give trans-1-(2-isopropylamino-3,5-dimethoxyphenyl)propene (11). The photoaminations of 1–4 and 6–8 with NH3 in the presence of m-dicyanobenzene gave the aminated products without incorporation of cyanophenyl group. Furthermore, the addition of 1,3,5-triphenylbenzene and m-terphenyl for these reactions improved the yields of the photoaminated products.
« Last Edit: July 19, 2010, 05:10:02 PM by java »
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Re: July 2010 Reference Request Thread
« Reply #131 on: July 20, 2010, 01:16:44 PM »
SYNTHESIS OF EPHEDRINE AND STRUCTURALLY SIMILAR COMPOUNDS. III. A NEW SYNTHESIS OF ORTHO-DIKETONES
Harold W. Coles, Richard H. F. Manske, Treat B. Johnson
J. Am. Chem. Soc.
1929, 51 (7), pp 2269–2272
DOI: 10.1021/ja01382a046



AMINO ALCOHOLS. I. PHENYLPROPANOLAMINE AND PARA-TOLYLPROPANOLAMINE
Walter H. Hartung, J. C. Munch
J. Am. Chem. Soc.
1929, 51 (7), pp 2262–2266
DOI: 10.1021/ja01382a044



SYNTHESIS OF EPHEDRINE AND STRUCTURALLY SIMILAR COMPOUNDS. II. THE SYNTHESIS OF SOME EPHEDRINE HOMOLOGS AND THE RESOLUTION OF EPHEDRINE
Richard H. F. Manske, Treat B. Johnson
J. Am. Chem. Soc.
1929, 51 (6), pp 1906–1909
DOI: 10.1021/ja01381a042




SYNTHESIS OF EPHEDRINE AND STRUCTURALLY SIMILAR COMPOUNDS. I. A NEW SYNTHESIS OF EPHEDRINE
Richard H. F. Manske, Treat B. Johnson
J. Am. Chem. Soc.
1929, 51 (2), pp 580–582
DOI: 10.1021/ja01377a032
« Last Edit: July 20, 2010, 01:57:57 PM by java »
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no1uno

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Re: July 2010 Reference Request Thread
« Reply #132 on: July 21, 2010, 01:41:21 AM »
I'll just add two more, the aluminium borides (yeah, the ones from thermite - Aluminium + Borax) that we've all assumed are useless - give off boranes when treated with a non-oxidizing acid (like H3PO4). Given that the reaction of the borane produced thereby with alkali metal hydroxides gives the correspondent borohydride, it might be worth a little look...

XII.—The Hydrides of Boron
Steele,Bertram;Mills,James
J. Chem. Soc. Vol.1 1930 pp.74-79 DOI:  10.1039/JR9300000074
http://www.rsc.org/Publishing/Journals/JR/article.asp?doi=JR9300000074

Abstract

(I'll fill it in when I get it - it is "apparently" the preparation of Diborane from Aluminium Boride).
[/color]

« Last Edit: June 20, 2011, 09:13:01 AM by Enkidu »
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no1uno

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Re: July 2010 Reference Request Thread
« Reply #133 on: July 22, 2010, 12:28:48 PM »
The Decomposition of a-Nitrocarboxylic Acids: With Some Remarks on the Decomposition of B-Ketocarboxylic Acids

Pederson,Kai

J. Phys. Chem.
Vol.38(5) 1934 pp.559–571
DOI: 10.1021/j150356a001
http://pubs.acs.org/doi/abs/10.1021/j150356a001

Abstract

The object of this paper is to contribute to our understanding of the tendency of a-nitrocarboxylic acids to split off carbon dioxide.

> CNO[size=-2]2[/size].COOH --> CHNO[size=-2]2[/size] + CO[size=-2]2[/size]

The simplest acid of this type, nitroacetic acid, was studied kinetically by Heuberger (2,3) and, independently, by the author of this paper (7). In the latter work, the rate of decomposition was determined on solutions of hydrochloric acid of various concentrations and in buffer solutions, mainly acetate buffers (pH = 4 to 5). The rate increases with decreasing hydrogen-ion concentration and reaches a maximum value in the acetate buffers. Here it is independent of the hydrogen-ion concentration. In sufficiently alkaline solution nitroacetic acid is stable.

Preparation of Diborane from Lithium Hydride and Boron Trihalide Ether Complexes

Elliot,J;Boldebuck,E;Roedel,G

J. Am. Chem. Soc.
Vol.74(20) 1952 pp.5047–5052
DOI: 10.1021/ja01140a017
http://pubs.acs.org/doi/abs/10.1021/ja01140a017

Abstract

The preparation of diborane from lithium hydride and boron trihalide etherates under different conditions is described and secondary reactions are discussed. The reaction between lithium hydride and boron trifluoride in ethyl ether has been shown to proceed by two different courses. If ether-soluble, active hydrogen-containing promoters are present, or if pressure is used to force the reaction between lithium hydride and diborane, the hydride is converted completely to lithium borohydride and lithium fluoride before diborane is evolved. In the absence of soluble promoters, diborane escapes continually from the solution, lithium borofluoride is formed and lithium borohydride does not accumulate. If less than a specified ratio of borohydride to hydride exists in the ether solution, the borohydride is consumed in the continuing reaction, and diborane is evolved. In tetrahydrofuran, a promoter is not required for the conversion of lithium hydride to lithium borohydride. Since the solubility of diborane is relatively high in tetrahydrofuran, conditions favor the production of borohydride by reaction of diborane with lithium hydride, as in the pressure reaction with ether as solvent.
 
Reaction between the Ether Complex of Boron Trifluoride and Lithium Hydride Communication. 1. Preparation of Pure Diborane

Mikheeva,V;Fedneva,E

Russian Chem. Bull.
Vol.5(8 ) 1956 pp.925-934
DOI: 10.1007/BF01166405
http://www.springerlink.com/content/x8245352g00v5048/

Summary
  
1. The reaction of lithium hydride with boron trifluoride etherate has a complex mechanism, which probably includes various parallel and successive reactions leading to the formation, as the ultimate boron-containing products, of diborane, lithium borohydride, and lithium fluoborate. The yield of diborane is dependent on reaction temperature, relative amounts of reactants, degree of agitation of the reaction mixture, and order of addition of reactants.
2. An almost quantitative yield with respect to both reactants is attained by carrying out the reaction at somewhat raised temperature (25–30°) in the initial stage, at a BF3 : LiH ratio of 1 : 2,4–2.8, and with gradual addition under constant stirring of lithium trifluoride etherate to lithium hydride.
3. The reaction studied is the simplest and most economical method for the preparation of highly pure diborane under laboratory conditions, and it opens up wide possibilities for the further study of the chemistry of boron hydrides and their derivatives.

Deuterium-Exchange Reaction on Trimethylamine-Borane with Sulfonate Cation Exchanger in the Deuterio Form

Muraviev,D;Rogachev,I;Bromberg,L;Warshawsky,A

J. Phys. Chem.
Vol.98(2) 1994 pp.718–724
DOI: 10.1021/j100053a055
http://pubs.acs.org/doi/abs/10.1021/j100053a055

Abstract

The kinetics of H-D exchange on trimethylamino-borane in bi- and triphase systems involving sulfonate cation exchangers in the D+ form show that the rate of isotope exchange is lower in triphase systems in comparison to the liquid-liquid extraction system; nevertheless the yield of deuterated product in polymeric deuterating systems is essentially much higher than that obtained in applying liquid deuterating agents. The cation-exchange resin when applied in a triphase system demonstrates ambivalent behaviour, acting as a catalyst toward deuterio-exchange reaction and as a suppressor towards the hydrolysis of TMAB. The hydrolysis of TMAB results in the formation of trimethylamine which accelerates the hydrolysis and inhibits the H-D exchange by saturation of the SO3- resin sites. The immobilization of the aqueous phase (D2O) in swollen ion exchanger creates unique conditions for isotope exchange, completely suppressing hydrolytic side reactions, and pure deuterated product can be acheived in quantitive yield.

Lithium Aluminum Hydride, Aluminum Hydride and Lithium Gallium Hydride, and Some of their Applications in Organic and Inorganic Chemistry

Finholt,A;Bond,A;Schlesinger,H

J. Am. Chem. Soc.
Vol.69(5) 1947 pp.1199–1203
DOI: 10.1021/ja01197a061
http://pubs.acs.org/doi/abs/10.1021/ja01197a061

Abstract

When lithium hydride is treated with an ether solution of aluminium chloride under the conditions described in the experimental part of this paper, the new ether soluble compound, lithium aluminium hydride, LiAlH4 is formed according to the equation:

4LiH + AlCl3 ----> LiAlH4 + 3LiCl

Addition of further quantities of aluminium chloride yields an ethereal solution of aluminium hydride:

3LiAlH4 + AlCl3 ----> 4AlH3 + 3LiCl.

Syntheses of the Alkali Metal Borodeuterides

Atkinson,J;MacDonald,D;Stuart,R;Tremaine,P

Can. J. Chem
Vol.45(21) 1967 pp.2583-2588
http://article.pubs.nrc-cnrc.gc.ca/ppv/RPViewDoc?issn=1480-3291&volume=45&issue=21&startPage=2583

Abstract

A synthesis of sodium borodeuteride on a molar scale has been developed. Trimethylamine-borane was exchanged (6) with deuteriosulfuric acid in deuterium oxide to obtain trimethylaminborane-d3 of a high isotopic purity. Reaction of trimethylaminborane-d3 with sodium methoxide in diglyme at 120-150'C yielded sodium borodeuteride, which, after purification, was obtained in a 40-50% overall yield. The conditions for obtaining material of a high isotopic and chemical purity were found to be rather stringent but, once worked out, were easily reproducible.
« Last Edit: July 24, 2010, 05:49:12 AM by no1uno »
"...     "A little learning is a dang'rous thing;
    Drink deep, or taste not the Pierian spring:
    There shallow draughts intoxicate the brain,
    And drinking largely sobers us again.
..."

embezzler

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Re: July 2010 Reference Request Thread
« Reply #134 on: July 22, 2010, 06:23:41 PM »
Characterisation of a proposed internet synthesis of N,N-dimethyltryptamine using liquid chromatography/electrospray ionisation tandem mass spectrometry[/u]

Cláudia P.B. Martinsa, Sally Freemanb, John F. Aldera and Simon D. Brandt

Journal of Chromatography A
Volume 1216, Issue 33, 14 August 2009, Pages 6119-6123
doi:10.1016/j.chroma.2009.06.060

Abstract;
The psychoactive properties of N,N-dimethyltryptamine (DMT) are known to induce altered states of consciousness in humans. These properties attract great interest from clinical, neuroscientific, clandestine and forensic communities. The Breath of Hope Synthesis was reported on an internet website as a convenient two-step methodology for the preparation of DMT. The analytical characterisation of the first stage was the subject of previous publications by the authors and involved the thermal decarboxylation of tryptophan and the formation of tryptamine. The present study reports on the characterisation of the second step of this procedure which was based on the methylation of tryptamine. This employed methyl iodide and benzyltriethylammonium chloride/sodium hydroxide as a phase transfer catalyst. The reaction product was characterised by liquid chromatography/electrospray ionisation tandem mass spectrometry and orthogonal acceleration time-of-flight mass spectrometry. Quantitative evaluation was carried out in positive multiple reaction monitoring mode (MRM), which included synthesis of the identified reaction products. MRM screening of the product did not lead to the detection of DMT. Instead, 11.1% tryptamine starting material, 21.0% N,N,N-trimethyltryptammonium iodide (TMT) and 47.4% 1-N-methyl-TMT were detected. A 0.5% trace of the monomethylated N-methyltryptamine was also detected. This study demonstrated the impact on product purity of doubtful synthetic methodologies discussed on the internet.
All that we see or seem is but a dream within a dream...

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Re: July 2010 Reference Request Thread
« Reply #135 on: July 23, 2010, 01:04:17 AM »
Bufo alvarius: a potent hallucinogen of animal origin.  
Weil AT, Davis W.
Journal of Ethnopharmacology
1994, Volume 41, Issues 1-2,  Pages 1-8
doi:10.1016/0378-8741(94)90051-5



Abstract:
Anthropologists have long speculated that ancient peoples of Mesoamerica used a toad, Bufo marinus, as a ritual intoxicant. This hypothesis rests on many iconographic and mythological representations of toads and on a number of speculative ethnographic reports. The authors reject B. marinus as a candidate for such use because of the toxicity of its venom. A more likely candidate is the Sonoran desert toad, Bufo alvarius, which secretes large amounts of the potent known previous termhallucinogen,next term  5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT). The authors demonstrate that the venom of B. alvarius, although known to be toxic when consumed orally, may be safely smoked and is powerfully psychoactive by that route of administration. These experiments are the first documentation of an hallucinogenic agent from the animal kingdom, and they provide clear evidence of a psychoactive toad that could have been employed by Precolumbian peoples of the New World.

Keywords: Bufo; Hallucinogens; Tryptamine; Toad; Maya

« Last Edit: July 23, 2010, 01:07:40 AM by java »
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Re: July 2010 Reference Request Thread
« Reply #136 on: July 24, 2010, 05:40:08 AM »
The Pyrolysis of Unsolvated Alkyllithium Compounds
Glaze,William;Lin,Jacob;Felton,E
J. Org. Chem. Vol.31(8 ) 1966 pp.2643–2645 DOI: 10.1021/jo01346a044
http://pubs.acs.org/doi/abs/10.1021/jo01346a044

Abstract

The rates of thermal decomposition of unsolvated ethyl-, n-butyl, isopropyl- , and sec-butyllithium have been investigated at several temperatures in the range 82-130'C. The rate constants for olefin product formation, obtained manometrically, indicate the following order of stability: ethyl ~ n-butyl > isopropyl > sec-butyl. Activation parameters in each case are ca. 25kcal (?H*) and -10 to -16 cal deg-1 (?S*). The factors which distinguish the system from the decomposition in hydrocarbon solution are discussed.[/color]

« Last Edit: June 20, 2011, 09:15:35 AM by Enkidu »
"...     "A little learning is a dang'rous thing;
    Drink deep, or taste not the Pierian spring:
    There shallow draughts intoxicate the brain,
    And drinking largely sobers us again.
..."

embezzler

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Re: July 2010 Reference Request Thread
« Reply #137 on: July 24, 2010, 11:17:24 AM »
@no1uno

Organometallic Photochemistry. I. The Photolysis of Ethyllithium

Glaze,William;Brewer,Terry

J. Am. Chem. Soc.
Vol.91(16) 1969 pp.4490–4493
DOI: 10.1021/ja01044a029
http://pubs.acs.org/doi/abs/10.1021/ja01044a029

Abstract

The photolysis of ehtyllithium with mercury resonance radiation apparently proceeds by two competing photolytic mechanisms: A lithium hydride elimination reaction which yields ethylene, and a homolytic process which yields lithium metal, ethane and ethylene. The absence of butane and deuterated ethane (when the photolysis is carried out in C6D4 or C6D12) indicates that the homolytic process occurs via an intraaggregate disproportionation mechanism. Photolysis in the solid state yields ethane, ethylene and butane as well as polymeric material. Solution photolysis in the presence of a mercury pool yields only ethane (and no LiH).
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java

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Re: July 2010 Reference Request Thread
« Reply #138 on: July 24, 2010, 01:23:39 PM »
Amine oxidation. Part I. The side-chain oxidation of N-alkyl- and NN-dialkyl-anilines by manganese dioxide

H. B. Henbest and A. Thomas

Journal of the Chemical Society (Resumed)
1957, 3032 - 3039
DOI: 10.1039/JR9570003032


N-Permethylation of Primary and Secondary Aromatic Amines
A. G. Giumani, G. Chiavari, M. M. Musiani, and P. Rossi
Synthesis
1980; 1980: 743-746
DOI: 10.1055/s-1980-29198


Reductive N-Monoalkylation of Primary Aromatic Amines

Verardo, Giancarlo; Giumanini, Angelo G.; Strazzolini, Paolo; Poiana, Marco

Synthesis
1993; 1993(1): 121-125
DOI: 10.1055/s-1993-25813

Abstract

Primary aromatic amines with a variety of ring substituents are easily converted to their N-monoalkyl derivatives by a simple variation of the sodium borohydride/sulfuric acid/carbonyl compound procedure previously described for their N-permethylations. The procedure is suitable for the a-monodeuterium labelling of the new N-substituent.

Electrolytic reduction. Part VII. The catalytic action of copper

Herbert Drake Law
 
J. Chem. Soc., Trans.
Vol.101 1912 p.1544
DOI: 10.1039/CT9120101544

No Abstract

Electrolytic reduction. Part VI. Unsaturated aldehydes and ketones

Herbert Drake Law

J. Chem. Soc.,Trans.
Vol.101 1912 pp.1016-1032
DOI: 10.1039/CT9120101016
 
No Abstract

« Last Edit: July 24, 2010, 01:36:18 PM by java »
¡Prefiero morir de pie que vivir siempre arrodillado!.Emiliano ZapataIt is better to die on your feet than to live on your knees!.......

java

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Re: July 2010 Reference Request Thread
« Reply #139 on: July 24, 2010, 01:40:53 PM »
Poppy seed tea and opiate abuse in New Zealand

Klare Braye, Thomas Harwood, Rachel Inder, Richard Beasley, Geoffrey Robinson

Drug and Alcohol Review
Vol.26(2) 2007 pp.215-219
DOI: 10.1080/09595230601146637

Abstract

The opium poppy Papaver somniferum contains an array of opiates. There is a variety of methods of preparation that can be used by people with opiate dependence, with patterns of use determined by numerous factors including cost, safety, potency and legal status. The objective of this study was to determine the frequency and nature of poppy seed tea (PST) use by opiate-dependent patients in the form of a written questionnaire. The study took place at the Community Alcohol and Drug Clinic, Wellington, New Zealand, and comprised 24 opiate-dependent patients attending the clinic. A total of 11 of 24 (46%) patients reported having used PST. In five patients currently using PST it represented the major source of opiates, and two had managed to withdraw from use of other opiates with regular PST use. Patients reported a median onset of action of 15 minures and an effect lasting a median of 24 hours. The major limitation of PST use was the foul taste. PST is used commonly by opiate-dependent patients attending an alcohol and drug clinic in New Zealand. The use of PST as the major source of opiates could be considered favourably within ‘harm reduction’ philosophies, because of its low cost, legal availability and oral route of administration. Conversely, there is the potential for PST to act as a ‘gateway drug’ by inducing opioid dependence and introducing people to the culture of drug abuse.


The Preparation of Substituted Diphenylethylamines and Diphenylehtanolamines

McPhee,Warren;Erickson,Ernst

J. Am. Chem. Soc.
Vol.68(4) 1946 pp.624–627
DOI: 10.1021/ja01208a028


Abstract

In 1943, Dodds, Lawson and Williams published a note on the morphine-like properties of phenylethylamine and five related compounds. In a later publication the study was extended to include nine compounds not previously tested, several of which had hydroxyl or methoxyl groups in the aromatic rings. The most active substances of the English workers were the hydrochlorides of ?,?-diphenyl-?-hydroxyethylamine, ?,?-diphenylethylamine and dimethyldesylamine. These three were tested clinically in a small number of patients, the first substance giving results that it might be useful as a general analgesic.

Specialized Analgesic Effects of ?-Hydroxy-?,?-Diphenylethylamine

Dodds,E;Lawson,W;Williams,P

Nature
Vol.154 1944 pp.514-514
DOI: 10.1038/154514a0


Abstract

CLINICAL trials by other workers not yet reported have confirmed our original observation1 ?-Hydroxy-?,?-Diphenylethylamine will relieve pain due to pressure on nerve in patients with inoperable tumours. This was the only type of pain included in our trials, and it is now clear that the compound has no universal analgesic action and cannot be used generally as a substitute for morphine. Tests using the method of Sivadjian, which measures the tolerance of rats to electric shocks, have now been carried out with morphine and the diphenylethylamine compounds the morphine-like properties of which we have described. The results, which will be reported in detail elsewhere, were entirely negative for the diphenylethylamine compounds; but analgesic activity was demonstrated in the hydrochlorides of morphine and pethidine, showing that the negative results were not due to the method used. The cause of the specific action of ?-Hydroxy-?,?-Diphenylethylamine on nerve pressure pain awaits further pharmacological investigation.

Oxidation of Primary Alcohols to Carboxylic Acids at the Nickel Hydroxide Electrode
Kaulen, J.; Schäfer, H. J.
Synthesis
1979: 513-516
DOI: 10.1055/s-1979-28735

Katalytische oxydation von primären und sekundären hydroxylverbindungen mit sauerstoff am platinkontakt in flüssiger phase: Über katalytische oxydationen—XIV

K. Heyns and L. Blazejewicz
Tetrahedron
Volume 9, Issues 1-2, 1960, Pages 67-75
doi:10.1016/0040-4020(60)80054-3

Abstract:

Unter milden Bedingungen lassen sich in wässriger Lösung oder in organischen Lösungsmitteln mittels Sauerstoff am Platinkontakt primäre Alkohole je nach den Bedingungen zu Aldehyden oder Carbonsäuren, sekundäre Alkohole zu Ketonen oxydieren. Die Oxydation verschiedenster Alkohole wurde systematisch untersucht. Das Verfahren eignet sich besonders zur präparativen Darstellung langkettiger Aldehyde.


« Last Edit: July 24, 2010, 01:42:52 PM by java »
¡Prefiero morir de pie que vivir siempre arrodillado!.Emiliano ZapataIt is better to die on your feet than to live on your knees!.......