haloalkenes with Bn3SnH proceeded efficiently. Homolytic hydrostannylation of alkynes with Bn3SnH followed by treatment with electrophiles gave functionalized alkenes in good to high yields. The organotin byproducts formed could be easily removable by filtration and silica-gel column chromatography without any pretreatment. It was also found that tribenzyltin chloride (Bn3SnCl) easily decomposed to
研究了使用易从
锡和苄基
氯制备的氢化三苄基
锡(Bn 3 SnH)进行的自由基反应。Et 3 B引发的Bn 3 SnH的卤代
烷烃和卤代烯烃的还原和环化反应得以有效进行。
炔烃与Bn 3 SnH的均相加氢
苯乙烯基化反应,再用亲电试剂处理,可以高至高收率得到官能化的烯烃。所形成的
有机锡副产物可以很容易地通过过滤和
硅胶柱色谱法除去而无需任何预处理。还发现,
三苄基氯化锡(Bn 3 SnCl)在H 2 O 2的碱性溶液中容易分解为
苯甲醇。