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 organocopper reagents 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
通过炔基S,N-乙缩醛与三氟甲磺酸甲酯的反应以高效方式合成了1-甲硫基炔丙基铵盐。1-甲基硫代炔丙基铵盐与格利雅试剂的反应产生炔丙基硫化物或烯丙基硫,而与有机铜试剂的反应导致炔丙基硫化物的排他性形成,而与炔碳上取代基的性质无关。当用有机锂和酰胺化锂碱处理时,这些盐会发生自二聚反应。