Preparation of N,N-dialkyl p-vinyl anilines
US3984472A · kind A · utility
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1References
5Claims
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Key dates
| Filing date | Jun 27, 1974 |
| Grant date | Oct 5, 1976 |
| Priority date | — |
| Expiry date | Jun 27, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/142
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process of forming a dye mordant precursor for a photographic system by reacting a p-amino phenethyl alcohol with a trialkyl phosphate at a controlled temperature, and dehydrating the resultant p-dialkyl amino phenethyl alcohol with a strong alkali in the presence of a polymerization inhibitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.