Photoinduced Regioselective Lactonization of ortho-Iodobenzoic Acids with Alkenes: Synthesis of 3,4-Dihydroisocoumarin Derivatives
作者:Chao Yang、Wujiong Xia、Xiao Zhang、Binbin Huang
DOI:10.1055/s-0036-1588541
日期:2018.1
A photoinduced strategy for the synthesis of a variety of 3,4-dihydroisocoumarins has been realized. The reactions proceeded from ortho -iodobenzoic acids and alkenes through a photodehalogenative lactonization with NaHCO 3 as the only additive in dimethyl sulfoxide (DMSO) to provide the desired products in moderate to good yields. This method offers a simple, mild, and environmentally friendly route