Thermal reactions of substituted cyclopropenone acetals. Regio- and stereochemistry of vinylcarbene formation and low-temperature [3 + 2] cycloaddition
作者:Hidetoshi Tokuyama、Masahiko Isaka、Eiichi Nakamura
DOI:10.1021/ja00040a006
日期:1992.7
of diverse electronic character have been synthesized and examined for their thermal behavior toward water and electron-deficient olefins. The substituted cyclopropenes underwent regio- and stereoselective hydration to give acrylate derivatives via vinylcarbene species, providing new data on the regio- and stereochemistry of vinylcarbene species. The also underwent regioselective [3+2] cycloadditions
已经合成了带有不同电子特性的烯烃取代基的环丙烯酮缩醛,并研究了它们对水和缺电子烯烃的热行为。取代的环丙烯经过区域和立体选择性水合,通过乙烯基卡宾物种产生丙烯酸酯衍生物,提供了关于乙烯基卡宾物种的区域和立体化学的新数据。还对缺电子烯烃进行了区域选择性 [3+2] 环加成反应,得到了一系列环戊烯酮缩醛