Phenyl alkyl ketone substituted by cyclic amine and a process for the preparation thereof
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United States of America Patent
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Feb 20, 2001
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Jun 10, 1999
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May 3, 1996
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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.
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