作者:Terence N. Mitchell、Ulrich Schneider
DOI:10.1016/0022-328x(91)86272-r
日期:1991.3
While free radical hydrostannation of monosubstituted allenes with Me3SnH affords mixtures of varying composition, cyclohexylidene allene is attacked by the stannyl radical preferentially at the central carbon atom. In contrast, palladium-catalysed hydrostannation involves a regioselective attachment of the organotin moiety to the less highly substituted terminal carbon atom of the allene framework
虽然单取代的艾伦与Me 3 SnH的自由基
氢化作用可提供不同组成的混合物,但
环己叉基艾伦优选在中心
碳原子处受到
苯乙烯基的攻击。相反,
钯催化的
氢化
锡锡烷反应涉及
有机锡部分与
烯丙基骨架的取代度较低的末端
碳原子的区域选择性连接。