Journal of heterocyclic chemistry

Factors which influence the formation of oxadiazoles from anthranilhydrazides and other benzoylhydrazines

NP Peet, S Sunder

文献索引：Peet, Norton P.; Sunder, Shyam Journal of Heterocyclic Chemistry, 1984 , vol. 21, p. 1807 - 1816

全文：HTML全文

被引用次数: 21

摘要

Abstract The cyclization of o-aminobenzoylhydrazine (1a) and its 5-methyl derivative 1b with four equivalents and with one equivalent of triethyl orthoacetate (TEOA) was studied. 3- Amino-2-methyl-4 (3H)-quinazolinone (2a), 3, 4-dihydro-2-methyl-5H-1, 3, 4-benzotriazepin- 5-one (3a) and an imino ether derivative of 2a, N-[2-methyl-4-oxo-3 (4H) quinazolinyl] ethanimidic acid ethyl ester (4a) were obtained from the reaction of 1a with four ...