Nitric Acid Promoted Metal-Free Bromothiolation of Internal Alkynes with Hydrobromic Acid and Disulfides
作者:Xiao-Cheng Huang、Han Sun、Zhi-Xiang Yao、Hui Su
DOI:10.1055/s-0040-1719934
日期:2022.9
A novel, metal-free bromo-thiolation of internal alkynes with hydrobromicacid and disulfides has been developed. The reaction is promoted by commercial-grade nitricacid and is used to construct a series of unexplored β-bromoalkenyl sulfides in moderate to good yield. Most products were obtained with high stereoselectivity as syn-configured tetrasubstituted alkenes. Both sulfide groups of the disulfide