Cycloaddition Reactions of Azepines and Diazepines with Conjugated Double Bonds Possessing Electron-Withdrawing Groups
作者:Katsuhiro Saito、Shigenori Iida、Toshio Mukai
DOI:10.1246/bcsj.57.3483
日期:1984.12
Cycloadditions of 1-ethoxycarbonyl-1H-azepine with 5-methoxycarbonyl-2-pyrone gave [4+2] and [4+6] type adducts and a benzazepine derivative, while the reaction of the azepine derivative with 3-methoxycarbonyl-2-pyrone afforded only a [4+2] type adduct. Similarly, an addition of 1-ethoxycarbonyl-1H-1,2-diazepine with 5-methoxycarbonyl-2-pyrone gave a benzodiazepine derivative. Reactions of the azepine