Transition-Metal-Free Synthesis of C3-Arylated Benzofurans from Benzothiophenes and Phenols
作者:Kevin Yang、Alexander P. Pulis、Gregory J. P. Perry、David J. Procter
DOI:10.1021/acs.orglett.8b03267
日期:2018.12.7
transition-metal-free synthesis of benzofuransfrom benzothiophenes and phenols that exploits the unique reactivity of sulfoxides. Through a sequence involving an interrupted Pummerer reaction and [3,3] sigmatropic rearrangement, phenols can be combined with readily accessible yet synthetically unexplored benzothiophene S-oxides to provide C3-arylated benzofuran products. The products from this approach can undergo