PROCESS FOR PRODUCING 3-NITRO-4-ALKOXYBENZOIC ACID

Title:

PROCESS FOR PRODUCING 3-NITRO-4-ALKOXYBENZOIC ACID

Document Type and Number:

WIPO Patent Application WO/2004/096750

Kind Code:

A1

Abstract:

A process for producing a 3-nitro-4-alkoxybenzoic acid which comprises the step of reacting at a temperature of 30 to 100°C a mixture comprising a 4-alkoxybenzoic acid and nitric acid having a concentration of 40 to 80%, the nitric acid being contained in an amount at least 8 times by weight the amount of the 4-alkxoybenzoic acid.

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Inventors:

UENO RYUZO (JP)
KITAYAMA MASAYA (JP)
WAKAMORI HIROYUKI (JP)

Application Number:

PCT/JP2004/006055

Publication Date:

November 11, 2004

Filing Date:

April 27, 2004

Export Citation:

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Assignee:

UENO SEIYAKU OYO KENKYUJO KK (JP)
UENO RYUZO (JP)
KITAYAMA MASAYA (JP)
WAKAMORI HIROYUKI (JP)

International Classes:

C07C201/08; C07C205/59; (IPC1-7): C07C201/08; C07C205/59

Foreign References:

JPS4956944A

1974-06-03

Other References:

PITCHUMANI K. ET AL: "CLAY CATALYSED NITRODECARBOXYLATION OF AROMATIC ACIDS", CATALYSIS LETTERS, vol. 21, 1993, pages 157 - 163, XP000601467
See also references of EP 1621528A4

Attorney, Agent or Firm:

Kawamiya, Osamu (IMP Building 3-7, Shiromi 1-chome, Chuo-k, Osaka-shi Osaka, JP)

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