Process for the preparation of vitamin a and intermediate...

Details Process for the preparation of vitamin a and intermediate... Process for the preparation of vitamin a and intermediate...

C - Chemistry, Metallurgy

07

D

C07D 317/14 (2006.01) C07C 43/17 (2006.01) C07C 43/313 (2006.01) C07C 45/28 (2006.01) C07C 47/277 (2006.01) C07C 403/14 (2006.01) C07D 317/16 (2006.01) C07D 317/20 (2006.01) C07D 317/26 (2006.01) C07D 319/06 (2006.01)

Patent

CA 2110748

La présente invention concerne un procédé de préparation de la vitamine A qui consiste à mettre en contact la cyclogéranylsulfone avec un aldéhyde acétal en C10, à halogéner le dérivé obtenu puis à éliminer le groupe halogène et la sulfone, à éliminer le groupe acétal et à redresser le rétinal obtenu.

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