Process for the preparation of 1,3,5-tris(4'-hydroxyaryl)benzene
US5344980A · kind A · utility
1Cited by
1References
7Claims
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Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C251/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel 4-substituted acetophenone anils and methods for preparing 1,3,5-tris(4'-hydroxyphenyl)benzenes from 4-substituted acetophenones such as 4-hydroxyacetophenones or, from substituted 4-hydroxyacetophenone-anils such as 4-hydroxyacetophenone-anil by reacting the 4-substituted acetophenone or corresponding anil with an aniline derivative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.