Catalytic isomerization of Z-pentol to E-pentol
US6465698B2 · kind B2 · utility
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Key dates
| Filing date | Jun 11, 2001 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Jun 11, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07B2200/09
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for catalytically isomerizing Z-3-methylpent-2-en-4-yn-1-ol to E-3-methylpent-2-en-4-yn-1-ol is provided. This process includes contacting a stereoisomeric mixture containing Z-3-methylpent-2-en-4-yn-1-ol and E-3-methylpent-2-en-4-yn-1-ol with a source of bromine radicals in a two-phase reaction mixture having an aqueous phase and a stereoisomeric mixture phase, intermixing the reaction mixture, and heating the reaction mixture to a temperature from about −10° C. to about 100° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.