Method for producing acetoacetic acid arylamides
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United States of America Patent
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Oct 4, 2011
Grant Date -
Sep 10, 2009
app pub date -
Apr 12, 2006
filing date -
Apr 12, 2005
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Expired
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Abstract
Acetoacetic acid arylamides are continuously produced from diketene and primary or secondary aromatic amines under the conditions of a reactive distillation in the presence of water. The continuous method provides a high purity of the products, nearly quantitative yields and a high rate of throughput.
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