Method for producing alkyl 3-phthalidylideneacetate
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United States of America Patent
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Apr 16, 1996
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N/A
app pub date -
Oct 3, 1994
filing date -
Oct 6, 1993
priority date (Note) -
Expired
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Abstract
A method for producing an alkyl 3-phthalidylideneacetate has the step of treating phthalic anhydride with a monoalkyl malonate or a salt thereof having the following formula: MOCO--CH.sub.2 --COOR, wherein M represents a hydrogen atom, K, Na, Li, or NH.sub.4, and R represents a lower alkyl group having 1 to 5 carbon atoms. By using the above method, the desired alkyl 3-phthalidylideneacetate can be obtained at a high yield.
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