Preparation of 4-cyano-4'-hydroxybiphenyl
US6160157A · kind A · utility
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5Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 5, 1999 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | Aug 5, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C253/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a preparation process for 4-cyano-4'-hydroxybiphenyl, said process comprising the protection of the hydroxy group of 4-phenyl-phenol, acylation of the protected 4-phenyl-phenol group, conversion of the resulting ketone into an acid, amidification of the acid thus obtained, dehydration of the resulting amide and deprotection of the hydroxy group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.