作者:Zh. A. Krasnaya、Yu. V. Smirnova、V. S. Bogdanov
DOI:10.1007/bf01435828
日期:1996.3
We expected that the condensation of 13-dimethylaminomethylenemalonaldehyde bisN, O-acetall (i) with cyclopentanone (2) in a ratio of 2 : 1 would result in the formation of polyenic bis-dimethylaminoketone (3), containing N,O-acetal groups at g,y'-positions. However, previously unknown [3,~'-bis(N-methylpyrrolyl3)divinylketone (4) was unexpectedly formed in a yield of 13 % instead of ketone 3. It is
我们预计 13-二甲氨基亚甲基丙二醛双 N、O-乙缩醛 (i) 与环戊酮 (2) 以 2:1 的比例缩合会导致多烯双二甲氨基酮 (3) 的形成,其中包含 N,O-缩醛基团在 g,y' 位置。然而,之前未知的[3,~'-双(N-甲基吡咯基3)二乙烯基酮(4)出乎意料地以13%的产率而不是酮3形成。化合物4很可能是由于酮3的分子内环化而形成的,涉及二甲氨基和 N,O-缩醛官能团的甲基之一(方案 1)。