Process for preparing alkoxytriazolinones
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United States of America Patent
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Jun 19, 2001
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N/A
app pub date -
May 23, 2000
filing date -
Oct 8, 1997
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Abstract
A process for preparing alkoxytriazolinones of general formula (1): ##STR1## in which R.sup.1 and R.sup.2 independently represent an alkyl group, an aryl group, an arylalkyl group or cycloalkyl group. The alkoxytriazolinones are prepared by reacting, in a first stage, water-dissolved iminocarboxylic acid diesters in the presence of a mineral acid or by reacting a mixture of water with a water-miscible polar organic solvent and a carboxylic acid ester, yielding hydrazine carboxylic acid ester; and in a second stage, by further reacting the thus obtained reaction product with an amine, a polar organic solvent or mixtures thereof in the presence of water.
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