Process to produce 4-(2-sulfoethyl) cyclohexane, 1,2-diol sodium salt from 4-vinylcyclohexane-1,2-diol
US6906220B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Mar 24, 2003 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Jul 16, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed herein is a process for preparing 4-(2-sulfoethylcyclohexane)-1,2-diol sodium salt, at ambient condition and in the presence of a buffer and an initiator, from vinylcyclohexane-1,2-diol. Also disclosed is a process for preparing 3-(2-sulfoethyl) hexanedioic acid, sodium salt by oxidizing 4-(2-sulfoethylcyclohexane)-1,2 diol sodium salt with hydrogen peroxide in the presence of tungstic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.