Homologation of Furfural and Deriuatives to Furylacetaldehydes

C. Brochet Laboratoire de Chimie des Agroressources, Ecole Nationale Supérieure de Chimie de Toulouse, INPT, 118, route de Narbonne, 31077, TOULOUSE Cédex, FRANCE

J. L. Syssa Laboratoire de Chimie des Agroressources, Ecole Nationale Supérieure de Chimie de Toulouse, INPT, 118, route de Narbonne, 31077, TOULOUSE Cédex, FRANCE

Z. Mouloungui Laboratoire de Chimie des Agroressources, Ecole Nationale Supérieure de Chimie de Toulouse, INPT, 118, route de Narbonne, 31077, TOULOUSE Cédex, FRANCE

M. Delmas Laboratoire de Chimie des Agroressources, Ecole Nationale Supérieure de Chimie de Toulouse, INPT, 118, route de Narbonne, 31077, TOULOUSE Cédex, FRANCE

A. Gaset Laboratoire de Chimie des Agroressources, Ecole Nationale Supérieure de Chimie de Toulouse, INPT, 118, route de Narbonne, 31077, TOULOUSE Cédex, FRANCE

Abstract

The homologation of furfural 1a and methyl 3-(5-formyl-2-furyl) propenoate 1b or ethyl 3-(5-formyl-2-furyl) propenoate 1c to the corresponding furylacetaldehydes was carried out in two stages:

i) preparation of the furan epoxides from 1a, 1b, 1c

ii) cleavage and rearrangement of the epoxides on sepiolite. Sepiolite is a convenient catalyst for this last stage involving substrates as labile as the furan epoxides.

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Homologation of Furfural and Deriuatives to Furylacetaldehydes

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Homologation of Furfural and Deriuatives to Furylacetaldehydes

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