Process for producing 4-phenyl-4-oxo-2-butenoic ester...

Details Process for producing 4-phenyl-4-oxo-2-butenoic ester... Process for producing 4-phenyl-4-oxo-2-butenoic ester...

2007-01-09

2007-01-09

Barts, Samuel A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

Reexamination Certificate

active

10513332

ABSTRACT:
A 4-phenyl-4-oxo-2-butenoate derivative is stably supplied in a short period of time, at low cost, in high purity and on an industrial scale by a process for producing the 4-phenyl-4-oxo-2-butenoate derivative, which comprises simultaneously or continuously reacting a sulfuric ester, an aromatic hydrocarbon and a maleic anhydride derivative.

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