Palladium-Catalyzed Alkynylthiolation of Alkynes with Triisopropylsilylethynyl Sulfide
作者:Masayuki Iwasaki、Daishi Fujino、Tatsuya Wada、Azusa Kondoh、Hideki Yorimitsu、Koichiro Oshima
DOI:10.1002/asia.201100643
日期:2011.12.2
Regio‐ and stereoselective addition of a silyl‐substituted alkynyl sulfide to various terminal alkynes proceeds in the presence of a palladium catalyst to give (Z)‐1‐thio‐1,3‐enynes, which are useful building blocks for the synthesis of polysubstituted 1,3‐enynes. Addition to internal alkynes also takes place under solvent‐free conditions (see scheme).
在钯催化剂的存在下,将甲硅烷基取代的炔基硫醚在区域和立体选择性地加成到各种末端炔烃上,得到(Z)-1-硫-1,3-烯炔,这对于合成多取代基是有用的结构单元1,3-烯炔 在没有溶剂的条件下,内部炔烃也要加成(见方案)。