Reactions of 2??hydroxybenzonitrile with isocyanates

J Petridou??Fischer…

Index: Petridou-Fischer, J.; Papadopoulos, E. P. Journal of Heterocyclic Chemistry, 1983 , vol. 20, p. 1159 - 1167

Full Text: HTML

Citation Number: 10

Abstract

Abstract Triethylamine catalyzes the reaction of 2-hydroxybenzonitrile (1) with aryl isocyanates to form the corresponding carbamates 2a-c, as well as the cyclization of the latter compounds to either 4 [N-(N-arylcarbamoyl)-imino]-3-aryl-2H-1, 3-benzoxazin-2-ones 4a-c, or 4-arylamino-2H-1, 3-benzoxazin-2-ones 7a-c, depending on the reaction temperature. Under analogous conditions, the carbamates obtained from 1 and 2- ...