Synthesis of N,3,4-trisubstituted-3-azoline-2-ones
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United States of America Patent
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Jun 4, 1991
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N/A
app pub date -
Jan 24, 1990
filing date -
Jan 24, 1990
priority date (Note) -
Expired
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Abstract
N,3,4-trisubstituted-3-azoline-2-ones (such as N-benzyl-3,4-dimethyl-3-azoline-2-one) are prepared by the reaction of an alkyl 2-chloro-2,3-disubstituted-3-butenoate (such as ethyl 2-chloro-2,3-dimethyl-3-butenoate) with a primary amine (such as benzyl amine). Methods for preparing the precursor esters are also disclosed.
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