Producing substituted 2-cyclopentenones
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United States of America Patent
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-
Dec 8, 1981
Grant Date -
N/A
app pub date -
May 21, 1980
filing date -
May 21, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process is provided for producing substituted 2-cyclopentenones represented by the general formula: ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are hydrogen or lower aliphatic hydrocarbyl groups. The process comprises treating a nitroalkane with a substituted acrylic acid ester in the presence of a base, followed by saponification, to yield a substituted 4-nitropentanoic acid which acid is then treated with strong acid under dehydrative conditions to yield the subject 2-cyclopentenone.
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