Selective hydroformylation–acetalization of various olefins using simple and efficient Rh-phosphinite complex catalyst
作者:Shoeb R. Khan、Bhalchandra M. Bhanage
DOI:10.1016/j.tetlet.2013.08.061
日期:2013.11
A simple and efficientRh-phosphinitecomplexcatalyst was studied for the selective hydroformylation of various olefins. The influence of various reaction parameters including the effect of temperature, pressure, catalyst loading, time, and solvents was studied. The protocol was also applied for the synthesis of various acetals via tandem hydroformylation–acetalization of olefins in alcohols as solvents
Phosphonium-based aminophosphines as bifunctional ligands for sequential catalysis of one-pot hydroformylation–acetalization of olefins
作者:Peng Wang、Huan Liu、Yong-Qi Li、Xiao-Li Zhao、Yong Lu、Ye Liu
DOI:10.1039/c5cy01827g
日期:——
involved bifunctional moieties of the phosphine fragment and Lewis acidic phosphonium were linked together by stable chemical bonds and bridged by one N-atom. The molecular structure of the L2-ligated Rh-complex (Rh-L2) indicated that such bifunctionalities were well retained without incompatibility problems. Investigations on co-catalysis over L1–L3 showed that L3 exhibited the best sequential catalysis