The Vespiary

The Hive => Chemistry Discourse => Topic started by: bones on May 27, 2003, 07:20:00 AM

Title: proton nmr shift values for some compounds??
Post by: bones on May 27, 2003, 07:20:00 AM
hi :D ... ive searched the lit but i cant find some nmr details for many things... i have many.. but many i dont... does anyone have shift values for mda, mdma? i have suitable reference spectra for the precursers.. but the goodies have been a little difficult to come by...

appreciate your help.
B
Title: Proton and carbon-13 NMR values for MDMA /MDA
Post by: Rhodium on May 28, 2003, 03:43:00 AM
Proton and carbon-13 NMR assignments of 3,4-methylenedioxyamphetamine (MDA) and some analogues of MDA
Terry A. Dal Cason, John A. Meyers and David C. Lankin

Forensic Science International 86(1-2), 15-24 (1997) (https://www.thevespiary.org/rhodium/Rhodium/pdf/mdma-mda.nmr.analysis.pdf)

(https://www.thevespiary.org/rhodium/Rhodium/pdf/mdma-mda.nmr.analysis.pdf)
DOI:

10.1016/S0379-0738(97)02102-6 (http://dx.doi.org/10.1016/S0379%2D0738%2897%2902102%2D6)



Abstract

Characterization of MDA (3,4-methylenedioxyamphetamine) and a series of nitrogen-substituted MDA analogues has been studied using proton and carbon-13 NMR spectroscopy. The 1H and 13C chemical shift assignments for both have been confirmed using a combination of 1-dimensional and 2-dimensional NMR experiments. The chemical shift trends of the side chain carbon resonances ((https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000435812-file_lwwo.gif)-CH2, (https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000435812-file_feqa.gif)-CH, and (https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000435812-file_xegs.gif)-CH3) for MDA, N-methyl MDA and N,N-dimethyl MDA, as both free bases and hydrochloride salts, have been examined.


Proton and carbon-13 NMR assignments of 3,4-methylenedioxyamphetamine (MDA) and some analogues of MDA
Terry A. Dal Cason, John A. Meyers and David C. Lankin

Forensic Science International 87(2), 175-177 (1997) (https://www.thevespiary.org/rhodium/Rhodium/pdf/mdma-mda.nmr.analysis-errata.pdf)

(https://www.thevespiary.org/rhodium/Rhodium/pdf/mdma-mda.nmr.analysis-errata.pdf)
DOI:

10.1016/S0379-0738(97)02219-6 (http://dx.doi.org/10.1016/S0379%2D0738%2897%2902219%2D6)



Abstract

Errata to Table 1 and 2 in the previous article.
Title: thankx rhodium, and thanks to however supplied
Post by: bones on May 28, 2003, 06:34:00 AM
thankx rhodium, and thanks to however supplied the pdf :D .... much appreciated
Title: The other one too
Post by: Rhodium on May 29, 2003, 12:56:00 AM
Check the link for the second article, I have uploaded that one too now.