Catalytic supercritical fluid extraction: selective hydroformylation of olefin mixtures using scCO2 solubility for differentiation

摘要

A new reaction concept that allows one to control the substrate selectivity of a catalytic reaction by supercritical fluid extraction is demonstrated for the hydroformylation of long-chain olefins as a prototypical example.Catalysts can usually discriminate between reactive substrates based on the functionality of the compound, or the shape and/or size of the compound. However, for substrates bearing identical reactive functions and being of similar shapes, the catalyst alone is sometimes not able to achieve acceptable levels of differentiation.