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。