V. Kalcheva, M. Tosheva, P. Hadjieva
Dec 13, 1993
Citations
0
Influential Citations
3
Citations
Journal
European Journal of Organic Chemistry
Abstract
Treatment of 2-(2-oxopropylthio)benzoxazoles 1a–d with an excess of primary amines in acetic acid or in perchloric acid affords 3-substituted 2-(2-hydroxyphenylimino)-4-methylthiazoles 4a–q. Interaction of thiazoles 4a,i with diazomethane leads to the corresponding O-methyl derivatives. The structure of compounds 4a–q is confirmed by an X-ray analysis of compound 4d.