Helene Wahe, P. F. Asobo, R. Cherkasov
Jun 7, 2004
Citations
0
Influential Citations
8
Citations
Journal
Arkivoc
Abstract
Aminobenzimidazole (1a) and its 5,6-dimethyl derivative 1b react with 4-hydroxy-2- alkynenitriles 2a-d in ethanol under reflux to give 2-amino-4-(1'-hydroxyalkyl)pyrimido(1,2-a)- benzimidazoles 5a-e and in dimethylformamide at 155°C to give (2,2-dialkyl-2,3-dihydro- oxazolo(3,2-a)benzimidazolylidene)ethanenitriles 7a-e.