Process for preparing hydroxylated and/or alkoxylated...

Details Process for preparing hydroxylated and/or alkoxylated... Process for preparing hydroxylated and/or alkoxylated...

C - Chemistry, Metallurgy

07

C

260/566.7

C07C 47/565 (2006.01) C07C 45/63 (2006.01) C07C 47/575 (2006.01)

Patent

CA 1216001

BREVET D'INVENTION PROCEDE DE PREPARATION DE BROMOBENZALDEHYDES HYDROXY ET/OU ALKOXY SUBSTITUES Société dite: RHONE-POULENC SPECIALITES CHIMIQUES Inventeurs: Serge RATTON Jean-Luc BOURGEOIS ABREGE DU CONTENU TECHNIQUE DE L'INVENTION Procédé de prération de bromobenzaldéhydes hydroxy et/ou alcoxy substitués par bromation de benzaldéhydes hydroxy et/ou alcoxy substitués par une quantité de brome inférieure à la stoechiométrie de la réaction puis par intervention d'un agent d'oxydation des ions bromures présents sous forme d'acide bromhydrique. Application à la préparation du bromo-3 hydroxy-4 méthoxy-5 benzaldéhyde.

470890

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