Synthesis and Properties of 1-Methylthiopropargylammonium Salts and Their Use as Key Precursors to Sulfur-Containing Enediynes
作者:Toshiaki Murai、Kozue Fukushima、Yuichiro Mutoh
DOI:10.1021/ol7024923
日期:2007.12.1
N-acetals with methyl triflate. Reactions of the 1-methylthiopropargylammonium salts with Grignard reagents gave propargyl sulfides or allenyl sulfides, whereas the reaction with organocopperreagents led to exclusive formation of allenyl sulfides regardless of the nature of substituents on the acetylenic carbon. The salts undergo self-dimerization reactions when treated with organolithium and lithium