Selective hydroformylation of open-chain conjugated dienes promoted by mesitylene-solvated rhodium atoms to give β,γ unsaturated monoaldehydes
作者:Sergio Bertozzi、Nedo Campigli、Giovanni Vitulli、Raffaello Lazzaroni、Piero Salvadori
DOI:10.1016/0022-328x(94)05107-m
日期:1995.2
The hydroformylation of 1,3-butadiene, 2-methyl-1,3-butadiene and 1,3-pentadiene using rhodium vapour-mesitylene cocondesates as a catalytic precursor is reported. The reaction gives β,γ-unsaturated monoaldehydes with high chemoselectivity and regioselectivity. η3-Butenyl complexes, derived from the addition of RhH species to the conjugated double-bound system, are likely to be intermediates, as suggested
据报道,使用铑-间苯三甲co共缩合物作为催化前体将1,3-丁二烯,2-甲基-1,3-丁二烯和1,3-戊二烯加氢甲酰化。该反应产生具有高化学选择性和区域选择性的β,γ-不饱和单醛。η 3 -丁烯基复合物,从加法RhH物种的共轭双绑定系统衍生的,很可能是中间体,由deuterioformylation实验的建议。