Process for the synthesis of polyhydroxystilbene compounds
US8399714B2 · kind B2 · utility
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5References
22Claims
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Key dates
| Filing date | Sep 23, 2008 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | May 17, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/055
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The 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 aluminum 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 independently represent an alkyl or aralkyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.