Process for the synthesis of polyhydroxystilbene compounds

Details Process for the synthesis of polyhydroxystilbene compounds Process for the synthesis of polyhydroxystilbene compounds

C - Chemistry, Metallurgy

07

C

C07C 37/50 (2006.01) C07C 39/215 (2006.01)

Patent

CA 2701879

fhe invention relates to a process for the synthesis of stilbene derivatives of formula (I)-(E) or (I)-(Z) in which R represents hydrogen or an OH group, by deprotection in the presence of an aluminium halide and of a tertiary amine of a compound of formula (II)-(E) or (II)-(Z) in which A represents hydrogen or an OR'1 group, and R1, R2, R3 and R'1 lindependently represent an alkyl or aralkyl group. Image

L'invention concerne un procédé de synthèse de dérivés de stilbène de formule (I)-(E) ou (I)-(Z), dans laquelle R représente hydrogène ou un groupe OH, par déprotection, en présence d'un halogénure d'aluminium et d'une amine tertiaire d'un composé de formule (II)-(E) ou (II)-(Z), dans laquelle A représente hydrogène ou un groupe OR'1, et R1, R2, R3 et R'1 représentent indépendamment un groupe alkyle ou aralkyle.

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