Organocatalytic Cloke–Wilson Rearrangement: Carbocation-Initiated Tandem Ring Opening/Cyclization of Cyclopropanes under Neutral Conditions
作者:Guisheng Zhang、Liming Chen、Zhaokang Hu、Zhiguo Zhang、Jingjing Bi、Mengjuan Li、Xingjie Zhang
DOI:10.1021/acs.joc.2c02415
日期:2023.1.20
We report a metal-, acid-, and base-free 2-(bromomethyl)naphthalene (2-BMN)-promoted organocatalytic Cloke–Wilson rearrangement of chain doubly activated cyclopropanes for the construction of 2,3-dihydrofurans via a carbocation-initiated tandem intramolecular ring-opening/recyclization process. The strategy is especially suitable for the construction of furan units in complex molecules, providing a
我们报道了一种不含金属、酸和碱的 2-(溴甲基) 萘 (2-BMN) 促进的有机催化 Cloke-Wilson 重排链双活化环丙烷,用于通过碳阳离子引发的 2,3-二氢呋喃的构建串联分子内开环/再循环过程。该策略特别适用于复杂分子中呋喃单元的构建,为传统基于金属的方案合成的含二氢呋喃药物中的重金属残留问题提供了解决方案。因此,它在合成和药物化学中具有潜在的意义。