In the presence of Pd(II) catalyst and copper(II) bromide, 2-(arylmethylene)cyclopropylcarbinols undergo ring enlargement to deliver (arylcyclobutenyl)carbinols or hydrogenated furans in good yields under mild conditions; mechanisms accounting for the distinct products have been proposed on the basis of control and deuterium labeling experiments.
在Pd(II)催化剂和
溴化铜(II)的存在下,在温和的条件下,对2-(芳基亚甲基)环丙基羰基化合物进行扩环,以高收率递送(芳基
环丁烯基)羰基化合物或氢化
呋喃。在控制和
氘标记实验的基础上,提出了解释不同产品的机理。