Method for preparing substituted 4-phenyl-4-cyanocyclohexanoic acids
US6452022B1 · kind B1 · utility
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8Claims
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Key dates
| Filing date | Nov 8, 2001 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Nov 8, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a method of preparing a compound type where at least one of R′ or R″ is a carboxyl group (I) by treating a compound of formula (II) with a Group I(a) or Group II(a) metal halide, with an aprotic dipolar amide-based solvent and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.