Hey, a friend will be dreaming on that, procedure he will use hypotetically speaking, note the ghetto style:

Bucket A (10liter plastic bucket with lid); mix well:

198g sodium metabisulfite
200g cyclohexanone

Bucket B (10 liter plastic bucket with lid) mix well :

190g. NaCN (Sodium cyanide)
230g. Piperidine

Add bucket A to bucket B, remove a lot (15minutes more less) and then allow to stand with lid for one day.

PCC is formed as a semicrystalline or crystalline cake on top of the aqueous layer ; removal on PCP and allow to dry.

Bucket C (10 liter plastic bucket with lid and a trash bag) mix well:

74g magnesium (Mg) metal turnings
475g bromobenzene
2 iodine crystals

when baggie blows up because of exothermic reaction , add 1,5L  of dry diethylether and another 25g of bromobenzene , mix well.

Disolve 150g of PCC (piperidincyclohexancarbonitrile) in 1,5L hexane and add to bucket C with the grignard reactive (phenylmagnesium bromide in ether), stir a lot with a large plastic stick (15 mins) and filter the cyanide , add more hexane (500mL), stir, and gassify with HCl gas (from H2SO4 + NaCl with a drying CaCl2 tube) , filter the PCP HCl crystals.

Gassify until no more PCP crystals , combine filtrations and add 1/3 cup of NaOH crystals , 3/4 pints of ethyl ether and 4/4 pints of distilled water (dH2O) , stir and cover, decant ether layer for PCP freebase dissolved in ether, repeat until all dissolved.

Save the top layer.

Enjoy!!

QUESTIONS:

Are this quantities enough for carrying the reaction at such circumpstances with success? Are there any step that can be omitted or I need to add any extra step??

Is there the possibility of high concentrations of deadly HCN gas and possibility of serious intoxication  if done EXACTLY this way?

Are quantities of solvents enough??

What do you will improve of this procedure?

What are approximate yield of this synth and if done this way what are the chances of getting a relatively pure product (PCP freebase, with little PCC contamination, for example 75%+) and in good yield?

Thank you a lot in advance community!!

Here is what one member was going to say before I locked this thread:

Are this quantities enough for carrying the reaction at such circumpstances with success? Are there any step that can be omitted or I need to add any extra step??

First logical step in your endeaveour would be to actually understand the reactions and calculate the stochiometry being used (See attached image). That way, you'll be able to answer your questions by yourself on this synthesis or any other one.

Is there the possibility of high concentrations of deadly HCN gas and possibility of serious intoxication  if done EXACTLY this way?

Fooling around with chemicals that have the possibility to release deadly HCN gas under certains conditions without a clue about which chemicals are incompatible is FUCKING STUPID, RECKLESS AND DANGEROUS. You're only going to smell hydrogen cyanide once  . Anyway, keep those cyanides salts away from strong minerals acids like HCl which will release the gas according to this equation:

NaCN(s) + HCl(aq) ---> HCN(g) + NaCl(s)



Note that there might be others conditions under which NaCN can release HCN. That's the only way I remember on top of my head though right now






Are quantities of solvents enough??

What do you will improve of this procedure?

What are approximate yield of this synth and if done this way what are the chances of getting a relatively pure product (PCP freebase, with little PCC contamination, for example 75%+) and in good yield?

Thank you a lot in advance community!!
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AND HERE IS THE PICTURE I WANTED TO ATTACH WITH THE CALCULATED STOCHIOMETRY... http://imageshack.us/photo/my-images/215/hyjroul.gif/


Lol @ ''Baggie Blowing'' , ''Bucket Chemistry'' , ''GERNARD reaction'', + other lousy shit in that procedure. I'm wondering how comes they're not having any problem with initiating the Grignard in that bucket though    I wouldn't like to be near that shit for sure ROFL. As lugh pointed out, it must smells a lot. Piperidine smells like shit and I assume that what I've smelled from impure PCP was Phenylcyclohexylcarbonitrile, which also smells like shit. Smells more like rotten fish than methylamine 


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