Nickel-Catalyzed One-Pot Carbonylative Synthesis of 2-Mono- and 2,3-Disubstituted Thiochromenones from 2-Bromobenzenesulfonyl Chlorides and Alkynes
作者:Wei Wang、Zhi-Peng Bao、Xinxin Qi、Xiao-Feng Wu
DOI:10.1021/acs.orglett.1c02442
日期:2021.8.20
A nickel-catalyzed one-pot carbonylation reaction of 2-bromobenzenesulfonyl chlorides with alkynes for the synthesis of thiochromenones has been established. Both terminal and internal alkynes were suitable substrates in this carbonylative transformation, and a broad range of 2-mono- and 2,3-disubstituted thiochromenone products were obtained in moderate to good yields with quite high functional group
已经建立了镍催化的 2-溴苯磺酰氯与炔烃的一锅羰基化反应,用于合成硫色酮。在这种羰基化转化中,末端和内部炔烃都是合适的底物,并且以中等至良好的收率获得了广泛的 2-单和 2,3-二取代的硫代色酮产物,具有相当高的官能团兼容性。值得注意的是,该过程展示了镍催化羰基化合成硫色酮与 2-溴苯磺酰氯作为有前景的硫前体的第一个例子。