Phenyl alkyl ketone substituted by cyclic amine and a process for the preparation thereof
US5795985A · kind A · utility
21Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Apr 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/031
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel process for the preparation of compounds of formula I ##STR1## by aminolysis of a p-halophenyl alkyl ketone of formula II ##STR2## with a cyclic amine of formula III ##STR3## in water at a temperature of at least 130.degree. C., in which formulae X is a halogen atom and R.sub.1, R.sub.2 and R.sub.3 are as claimed in claim 1, as well as the novel compounds of formula I and their use for the preparation of photoinitiators for the photopolymerisation of ethylenically unsaturated compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.