S. Nishigaki, M. Ichiba, K. Shinomura
Oct 1, 1971
Citations
0
Influential Citations
9
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
The pure cis- and trans-isomers of ethyl N-(2-pyridinyl)aminomethylenecyanoacetates were obtained and their structure and their interconvertibility is diseussed. 4H-Pyrido[1,2-a]pyrimidin-4-one-3-carboxylic acids were synthesized by treatment of both cis- and trans-isomers with hydrochloric acid.