作者:Christiane Santelli-Rouvier
DOI:10.1016/0040-4020(81)85011-9
日期:1981.1
By acid catalysis, gem-dihalogenocyclopropylcarbinols are converted into homoallylic α-dihalogenated cations which in general eliminate the hydrogen halide and lead to the 3-halogenopentadienyl cations from which cyclopentenones can be formed by cyclisation. For bicyclo[4.1.0]heptanes, aromatisation of the 3-halogenopentadienyl cation in benzyl bromide is observed.
通过酸催化,将宝石-二卤代环丙基羰基醇转化成均烯丙基的α-二卤代阳离子,该阳离子通常消除了卤化氢并生成了3-卤代戊二烯基阳离子,可以通过环化反应从中生成环戊烯酮。对于双环[4.1.0]庚烷,在苄基溴中观察到3-卤代戊二烯基阳离子的芳构化。