Process for producing halogenoacetals from enamines

Details Process for producing halogenoacetals from enamines Process for producing halogenoacetals from enamines

C - Chemistry, Metallurgy

07

C

260/395, 260/351

C07C 403/14 (2006.01) C07C 43/313 (2006.01) C07C 45/56 (2006.01) C07D 295/067 (2006.01) C07D 317/16 (2006.01) C07F 9/655 (2006.01)

Patent

CA 2031245

BREVET D'INVENTION PROCEDE DE PREPARATION D'HALOGENOACETALS A PARTIR D'ENAMINES RHONE-POULENC SANTE ABREGE La présente invention concerne un nouveau composé de formule (IV) son procédé de préparation à partir d'halogénoacétals Image (IV) d'aldéhydes éthyléniques par réaction avec le triéthylphosphate, et son utilisation pour la préparation du rétinal par réaction avec le .beta.-ionylidène acétaldéhyde.

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