Process for producing tricarboxylic acid tris (alkyl-substituted cyclohexylamide)
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United States of America Patent
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Jun 29, 2010
Grant Date -
Mar 12, 2009
app pub date -
Apr 5, 2006
filing date -
Apr 7, 2005
priority date (Note) -
Expired
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Abstract
Disclosed are, for example, a process for producing a tricarboxylic acid tris(alkyl-substituted cyclohexylamide), the process comprising subjecting a tricarboxylic acid and an alkyl-substituted cyclohexylamine to an amidation reaction, either (a) in the presence of a boric acid compound and a phenol compound or (b) in the presence of a boric acid ester obtained by the dehydration condensation of a boric acid compound and a phenol compound, and optionally purifying the resulting crude reaction product.
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