One-pot Synthesis of Acetals by Tandem Hydroformylation-acetalization of Olefins Using Heterogeneous Supported Catalysts
-
作者
DIMETHYLACETAL SYNTHESIS; SOLVENT-FREE; EFFICIENT; HYDROGENATION; ALDEHYDES; ALKENES
-
刊物名称
Catal. Lett.
-
年、卷、文献号
2021, ,
-
关键词
DIMETHYLACETAL SYNTHESIS; SOLVENT-FREE; EFFICIENT; HYDROGENATION; ALDEHYDES; ALKENES
-
摘要
A green route for one-pot synthesis of acetals by tandem hydroformylation-acetalization of olefins using supported Rh-based catalysts was developed. Experimental results demonstrated that suitable Rh loading (1 wt%) with appropriate reaction temperature (120 degrees C) and reaction time (8 h) were favorable for the formation of acetals, and a high acetals selectivity of 94.6% was achieved. More importantly, the selectivity to valuable linear products was enhanced in this tandem catalysis. Based on the catalytic mechanism study, highly dispersed RhOx nanoparticles and abundant acid sites on the supports were responsible for the hydroformylation and acetalization, respectively. [GRAPHICS] .
