ISSN:
1434-4475
Keywords:
4-Thiazolidine carboxylic acids
;
Chirality
;
3,4-Dihydro-1H-pyrrolo[1,2-c]thiazoles
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary 5-Substituted 3,4-dihydro-pyrrolo[1,2-c]thiazole-6,7-dicarboxylic acid esters3 are obtained from 2-substituted-3-acyl-1,3-thiazolidine-4-carboxylic acids,1 in [3+2]-cycloaddition reactions via mesoionic oxazolone (“münchnone”) intermediates. The chirality at C-4 of the starting carboxylic acids1 is eliminated in the products3, and the chirality at C-3 (C-2 in the starting carboxylic acids1) can thus be determined through chiroptical measurements. Several representatives of the ring system3 have been characterised through1H- and CD-spectra and the molecular structure of (3S)-3da has been determined by X-ray crystallography.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00818164
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