Production Method of a-Methylene Lactone
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United States of America Patent
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Issued Date -
Mar 12, 2015
app pub date -
Jul 20, 2012
filing date -
Jan 13, 2012
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Abandoned
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Abstract
The present invention relates to a production method of α-methylene lactone which comprises the following steps: (A) a step of producing an enolate intermediate by making lactone react with alkyl formate under the presence of an alkoxide base; and (B) making the enolate intermediate react with paraformaldehyde. The production method of the present invention is capable of reducing the process time, improving yield, and minimizing the contamination of a reactor.
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