Biniruchikanshikurohekisenjikarubokizarudehidonoseizoho

摘要

PURPOSE:To obtain the titled compound consisting of a novel substance useful as a raw material for organic industrial products efficiently in high purity, by oxidizing a 5C chain compound having CH3 in the side chain in the vapor phase in the presence of a metallic oxide, e.g. Mo-Bi-Tl type, etc. as a catalyst. CONSTITUTION:A 5C chain compound having CH3 in the side chain s oxidized in the vapor phase with molecular oxygen in the presence of a metallic oxide catalyst of formula I (Xc are one or more elements selected from a metallic element of Group I or a metallic element of Group II in the periodic table and Tl; a, b, c and d are the numbers of atoms of Mo, Bi, X and O; b is 0.01-50; c is 0.01-30 and d is the number of O atoms satisfying the valences of the other atoms) to give aimed compound consisting essentially of 5-vinyl-1-cyclohexene- 1,5-dicarboxaldehyde of formula II which is a novel substance useful as a raw material for flavorous substance like beefsteak plant or a raw material for various organic chemicals. EFFECT:The reaction can be carried out stably for a long term with a long catalyst life.