Reactions of sulfenamides with alkynes in the presence of phosphorus(v) oxohalides
作者:N. V. Zyk、E. K. Beloglazkina、M. A. Belova、N. S. Zefirov
DOI:10.1007/bf02494922
日期:2000.11
The reactions of alkynes with arylsulfenamides activated with phosphorus oxohalides giving rise to aryl β-halovinyl sulfides were investigated. The reactions with acetylene, oct-1-yne, and oct-4-yne aretrans-stereospecific, whereas the reaction with phenylacetylene afforded a mixture ofcis- andtrans-addition products. The addition to unsymmetrical alkynes yielded a mixture of Markovnikoff and anti-Markovnikoff
研究了炔烃与用磷酰卤活化的芳基次磺酰胺反应生成芳基 β-卤乙烯基硫化物。与乙炔、oct-1-yne 和 oct-4-yne 的反应是反式立体有择的,而与苯乙炔的反应提供了顺式和反式加成产物的混合物。向不对称炔烃加成产生马尔可夫尼科夫和反马尔可夫尼科夫异构体的混合物,其比例取决于溶剂。在催化量的酸存在下加成到 oct-1-yne 的产物经历异构化。