N. Katagiri, R. Niwa, Tetsuzo Kato
Aug 25, 1983
Citations
0
Influential Citations
6
Citations
Journal
Chemical & Pharmaceutical Bulletin
Abstract
The reaction of dichloroketene with ethyl N-(2-pyridyl)formimidates (1) gave ethyl 2, 2-dichloro-3-ethoxy-3-(2-pyridylamino)propionates (3) and 3-chloro-2-ethoxypyrido[1, 2-a]pyrimidin-4(4H)-ones (4), together with 3, 3-dichloro-4-ethoxy-1-(2-pyridyl)-2-azetidinone (2). Compound 3b, on standing at room temperature, was transformed into ethyl 2-ethoxy-8-methylimidazo[1, 2-a]pyridine-3-carboxylate (6).