作者:N. Slougui、G. Rousseau
DOI:10.1016/s0040-4020(01)96366-5
日期:1985.1
The reaction of chloro, chloromethyl and chlorophenyl carbenoids with ketene alkylsilylacetals has been studied. Excellent yields of cyclopropanation were observed and the unstable chlorocyclopropanone acetals formed were thermally rearranged in high yield into α-substituted α,β-ethylenic esters. This new method for the synthesis of unsaturated esters appeared complementary of the known-ones.
已经研究了氯,氯甲基和氯苯基类胡萝卜素与乙烯酮烷基甲硅烷基缩醛的反应。观察到优异的环丙烷化收率,并且将形成的不稳定的氯环丙烷缩醛以高收率热重排为α-取代的α,β-乙烯酯。这种合成不饱和酯的新方法似乎是已知化合物的补充。