Co-catalysis of rhodium/phosphoramidite catalyst and ZSM-35(10) for the tandem hydroformylation–acetalization of olefins?

Chemical Communications Pub Date: 2023-04-03 DOI: 10.1039/D3CC00488K

Abstract

The Rh/BINAPa and ZSM-35(10) co-catalyzed tandem hydroformylation–acetalization of olefins has been developed. A series of olefins with various alcohols performed well in the process, affording the corresponding acetals with high regioselectivities (l/b ≥ 30.5) and excellent catalytic activities (TON of the Rh catalyst up to 4.3 × 104). Control experiments and DFT calculations indicated that the Rh/L11-catalyzed hydroformylation occurred in the solvent outside the molecular sieve, while the acetalization of intermediate aldehydes with alcohols takes place mainly in the interior of the molecular sieve.

Graphical abstract: Co-catalysis of rhodium/phosphoramidite catalyst and ZSM-35(10) for the tandem hydroformylation–acetalization of olefins
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