COMPARATIVE STUDY OF THE DIFFERENT APPROACHES TO THE SYNTHESIS OF ISATINS WITH A CHIRAL SUBSTITUENT AT THE NITROGEN ATOM
DOI:
https://doi.org/10.1007/5248Keywords:
chiral N-arylanilines, isatins with a chiral substituent on the nitrogen atom, the Sandmeyer, Stolle, and Gassman methods, enantioselectivity.Abstract
Through a comparative study of three different routes to the synthesis of isatins with a chiral substituent on the nitrogen atom it has been shown that better results for preparing the isatins are achieved using the Sandmeyer (>99% ee, yield 50%) rather than the Stolle method (95% ee, yield 16%). The procedure proposed by Gassman for preparing isatins was unsuitable for the compounds described.
How to Cite
Kurkin, A. V.; Bernovskaya, A. A.; Yurovskaya, M. A. Chem. Heterocycl. Compd. 2011, 46, 1208. [Khim. Geterotsikl. Soedin. 2010, 1497.]