ISSN:
0030-4921
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A study of the 1H and 13C NMR spectra of the N-formyl-2,2,5-trimethyl-4-carboxythiazolidines and the N-formyl-4-carboxy-5-methylthiazolidines derived from the two diastereoisomeric 2-amino-3-mercapto-DL-butyric acids, permits unambiguous assignment of the erythro and threo configuration of these amino acids. The spectra of the N-formylthiazolidines, recorded in DMSO-d6 solution, reveal the presence of two conformational isomers with a low rate of interconversion. The geometry around the carbon-nitrogen bond and correlated conformations of the 5-membered ring in both forms are discussed.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1270060113
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