C-FORMYLATION OF SOME 2(3H)-BENZAZOLONES AND 2H-1,4-BENZOXAZIN-3(4H)-ONE

Authors
PETROV OI KALCHEVA VB ANTONOVA AT
Citation
Oi. Petrov et al., C-FORMYLATION OF SOME 2(3H)-BENZAZOLONES AND 2H-1,4-BENZOXAZIN-3(4H)-ONE, Collection of Czechoslovak Chemical Communications, 62(3), 1997, pp. 494-497
Citations number
8
Categorie Soggetti
Chemistry
Journal title
Collection of Czechoslovak Chemical Communications → ACNP
ISSN journal
00100765
Volume
62
Issue
3
Year of publication
1997
Pages
494 - 497
Database
ISI
SICI code
0010-0765(1997)62:3<494:COS2A2>2.0.ZU;2-6
Abstract
The C-formylation of 1.3-dimethyl-2(3H)-benzimidazolone and 4-methyl-2 H-1,4-benzoxazin-3(4H)-one was performed using 1,1-dichloromethyl meth yl ether at the Friedel-Crafts reaction conditions. The formylation of 3-methyl-2(3H)-benzoxa- and -thiazolone at the 6-position was carried out by modified Duff's method with hexamethylenetetramine in trifluor oacetic acid.