Heterogeneously catalyzed self-condensation of n-butanal

Abstract

The self-condensation of n-butanal is an important reaction for carbon-chain extension in the commercial production of 2-ethylhexanol. Moreover, aldol condensation is one of the important reactions for the synthesis of valuable organic chemicals or transportation fuels from biomass-derived platform compounds. So the investigation of the self-condensation of n-butanal is of significance in both academia and industry. This contribution reviewed the catalytic performance of heterogeneous catalysts in the self-condensation of n-butanal and the related reaction mechanism, network, and kinetics. The purpose of this review is to dedicate some help for further development of environmentally friendly catalysts and for a thorough comprehension of aldol condensation.