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(19)

(11)

2 443 671

(13)

(51)

IPC

C07C43/215(2006-01-01)

C07C41/09(2006-01-01)

C07C41/18(2006-01-01)

C07C69/738(2006-01-01)

C07C49/255(2006-01-01)

C07C243/42(2006-01-01)

C07D321/00(2006-01-01)

C07C45/65(2006-01-01)

C07C67/343(2006-01-01)

(21) (22)

Application

2009107169/04, 2007-07-25

(24)

Start date

2007-07-25

(22)

Actual filing date

2007-07-25

(45)

Published

2012-02-27

(72)

Inventor

Shuteten AlenZhju Sebast'EnVallezho Zhan-Klod

(73)

Holder

Klariant Speshialti Fajn Kemikalz

NOVEL METHOD FOR SYNTHESIS OF (E)-STILBENE DERIVATIVES, ENABLING TO OBTAIN RESVERATROL AND PICEATANNOL Russian patent published in 2012 - IPC C07C43/215 C07C41/09 C07C41/18 C07C69/738 C07C49/255 C07C243/42 C07D321/00 C07C45/65 C07C67/343

Abstract RU 2443671 C2

FIELD: chemistry.

SUBSTANCE: invention relates to versions of a novel method of producing a (E)-stilbene derivative of formula

used to produce polyhydroxystilbenes, particularly resveratrol or piceatannol, which exhibit antioxidant effect, novel intermediate compounds of formula , , and

used in said methods, as well as use of the compound of formula

, ,

(III), (IV) or (VII) as an intermediate compound in the synthesis of the (E)-stilbene derivative of formula (VI) or polyhydroxystilbene. Values of substitutes R₁, R₁', R₂', R, A, Ar, R' are given in the claim.

EFFECT: improved properties of the compound.

26 cl, 1 dwg, 32 ex

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RU 2 443 671 C2

Authors

Shuteten Alen

Zhju Sebast'En

Vallezho Zhan-Klod

Dates

2012-02-27—Published

2007-07-25—Filed