Process for preparing acyl amide compounds
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United States of America Patent
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Jul 17, 2012
Grant Date -
Sep 2, 2010
app pub date -
Dec 18, 2009
filing date -
Dec 23, 2008
priority date (Note) -
Expired
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Abstract
A process for preparing acyl amide compounds is described, in which a recrystallized o-nitrophenoxy carbonyl compound is hydrogenated with hydrogen gas in the presence of a nickel sponge metal catalyst with ring closure to form a benzoxazine, which is then reacted with an acyl halide to give the corresponding acyl amide compound.
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