PROCESS FOR PRODUCTION OF PHENOXY-SUBSTITUTED 2-PYRIDONE COMPOUNDS
3-Phenoxy-2-pyridone compound can be produced by making the amide compound of the formula (1): ???wherein R is optionally substituted phenyl; react with a malonoaldehyde derivative such as 3-alkoxypropenal and the like in the presence of a protonic acid.
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(2008/06/13)
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