Rhodium-Catalyzed Hydroformylation of 1,1-Disubstituted Allenes Employing the Self-Assembling 6-DPPon System
作者:Alexander Köpfer、Bernhard Breit
DOI:10.1002/anie.201502086
日期:2015.6.1
A rhodium‐catalyzed hydroformylation of 1,1‐disubstituted allenes is reported. Using a RhI/6‐DPPon catalyst system, one can obtain β,γ‐unsaturated aldehydes in high regio‐ and chemoselectivity. The Z‐configured product is formed with up to >95 % selectivity when unsymmetrically 1,1‐disubstituted allenes are submitted to the reaction conditions. This is the first time that these interesting building
据报道,铑催化的1,1—二取代的烯丙基加氢甲酰化反应。使用Rh I / 6‐DPPon催化剂体系,可以以高区域选择性和化学选择性获得β,γ-不饱和醛。当不对称的1,1-二取代的丙二烯进入反应条件时,Z构型的产物具有高达> 95%的选择性。这是这些有趣的结构单元首次通过烯丙基的加氢甲酰化获得。通过对所获得的产物之一进行进一步的转化,证明了该方法的实用性。