Benzimidazoles by Reaction of Lactones and Thiolactones with o-Phenylene-diamines

Autor: W. Aten, K. H. Büchel
Rok vydání: 1970
Předmět:
Zdroj: Zeitschrift für Naturforschung B. 25:928-931
ISSN: 1865-7117
0932-0776
DOI: 10.1515/znb-1970-0906
Popis: By refluxing o-phenylene diamines and α-methyl-butyrolactone or γ-thiol-butyrolactone in conc. HCl 2- (γ-hydroxy-propyl) - or 2-(γ-mercapto-propyl) -benzimidazoles are obtained. By further heating or by carrying out the reaction in an excess of the lactone in some cases selfalkylation of the benzimidazoles occurs. The reaction of some more lactones with diamines is described.
Databáze: OpenAIRE