Tandem hydroformylation/isomerization/hydrogenation of bio-derived 1-arylbutadienes for the regioselective synthesis of branched aldehydes
作者:Gabriel M. Vieira、Artur V. Granato、Elena V. Gusevskaya、Eduardo N. dos Santos、Pierre H. Dixneuf、Cédric Fischmeister、Christian Bruneau
DOI:10.1016/j.apcata.2020.117583
日期:2020.5
The rhodium-catalyzed hydroformylation of 1-arylbutadienes derived from lignocellulosic bio-resources has been carried out in toluene and green solvents. In the presence of DPPE and XANTPHOS ligands, a regioselective Markovnikov Rh-H insertion takes place resulting in branched aldehydes in high selectivity, which contrasts with previous results obtained from aliphatic conjugated dienes. Depending on
衍生自木质纤维素生物资源的1-芳基丁二烯的铑催化加氢甲酰化反应已在甲苯和绿色溶剂中进行。在存在DPPE和XANTPHOS配体的情况下,会发生区域选择性马尔可夫尼科夫Rh-H插入,从而以高选择性产生支链醛,这与先前从脂族共轭二烯获得的结果相反。取决于二膦配体的性质,以良好至优异的选择性获得共轭的烯醛或饱和醛。后者对于香料工业具有潜在的兴趣,因为它们与商业香料成分同源。