Journal
CATALYSIS LETTERS
Volume 151, Issue 9, Pages 2638-2646Publisher
SPRINGER
DOI: 10.1007/s10562-020-03504-5
Keywords
One-pot synthesis; Tandem hydroformylation-acetalization; Acetals; Heterogenous catalyst
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Funding
- Ministry of Science and Technology of China [2017YFB0602202]
- Natural Science Foundation of China [91945301]
- Key Research Program of Frontier Sciences, CAS [QYZDB-SSW-SLH035]
- Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences [XDA21020600]
- Youth Innovation Promotion Association of CAS
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A green route for one-pot synthesis of acetals by tandem hydroformylation-acetalization of olefins using supported Rh-based catalysts was developed. Experimental results showed that under suitable Rh loading, temperature, and time conditions, the catalyst could selectively form acetals. Additionally, this tandem catalysis enhanced the selectivity to valuable linear products.
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] .
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