Radical Carbosulfonylation of Propellane: Synthesis of Sulfonyl β-Keto-bicyclo[1,1,1]pentanes
作者:Yunlong Wei、Zhiqi Chen、Chen Zhu、Zhen Wu、Yaohui Xu、Xinxin Wu
DOI:10.1055/a-1484-1028
日期:2021.9
functionalized bicyclo[1.1.1]pentanes (BCPs) is of high synthetic value, as they are frequently harnessed as bioisosteres of 1,3-disubstituted benzene rings, alkynes, and tert-butyl groups in medicinal chemistry. Herein, we disclose a practical radical-mediated carbosulfonylation of propellane for the synthesis of sulfonyl β-keto-substituted BCPs by using vinyl sulfonates as dual-function reagent. This
多官能化的双环[1.1.1]戊烷(BCP)的结构具有很高的合成价值,因为它们在医药化学中经常被用作1,3-二取代的苯环,炔烃和叔丁基的生物等排体。在这里,我们公开了一种实用的自由基介导的丙炔的碳磺酰化,用于通过使用乙烯基磺酸盐作为双功能试剂来合成磺酰基β-酮取代的BCP。该协议具有宽泛的官能团耐受性和出色的原子经济性,可在温和的光化学条件下产生多种有价值的双官能BCP衍生物。