Tandem Hydroformylation/Hydrogenation of Alkenes to Normal Alcohols Using Rh/Ru Dual Catalyst or Ru Single Component Catalyst
作者:Kohei Takahashi、Makoto Yamashita、Kyoko Nozaki
DOI:10.1021/ja307998h
日期:2012.11.14
The catalystsystem for tandemhydroformylation/hydrogenation of terminal alkenes to the corresponding homologated normal alcohol was developed. The reaction mechanism for the Rh/Rudualcatalyst was investigated by real-time IR monitoring experiments and (31)P NMR spectroscopy, which proved the mutual orthogonality of Rh-catalyzed hydroformylation and Ru-catalyzed hydrogenation. Detailed investigation
A dualcatalystsystem has been developed for tandemhydroformylation/hydrogenation to produce n‐undecanol from 1‐decene in one pot. A combination of xantphos/[Rh(acac)(CO)2] and Shvo's catalyst (1) afforded the best results (see scheme; acac=acetylacetonate, DMA=N,N‐dimethylacetamide). Polar solvents effectively suppressed the formation of undecyl formate.