Highly Selective and Switchable Access to Tetrasubstituted Alkenyl Sulfones and Naphthyl Sulfones: 1,4-Aryl Migration versus Cyclization
作者:Fei Meng、Honglin Zhang、Jie Li、Jianlin Chun、Yun Shi、Han He、Bin Chen、Zhenbo Gao、Yingguang Zhu
DOI:10.1021/acs.orglett.9b03003
日期:2019.11.1
A highly efficient, chemo-, and regioselective approach has been developed for the switchable synthesis of tetrasubstituted alkenyl sulfones and naphthyl sulfones from homopropargylic alcohols via sulfonylation/1,4-aryl migration and sulfonylation/cyclization. The present switchable processes are characterized by mild and metal-free conditions, high selectivities, good functional group tolerance, the
已经开发了一种高效的,化学的和区域选择性的方法,用于通过磺酰化/ 1,4-芳基迁移和磺酰化/环化反应,从均丙醇中可合成合成四取代的链烯基砜和萘基砜。本发明的可切换方法的特征在于温和且无金属的条件,高选择性,良好的官能团耐受性,使用廉价且易于处理的磺酰肼作为磺酰基源以及释放无毒副产物H 2 O和N 2。