METHOD FOR PRODUCING QUINAZOLIN-4-ONE DERIVATIVE

Title:

METHOD FOR PRODUCING QUINAZOLIN-4-ONE DERIVATIVE

Document Type and Number:

Japanese Patent JP2007290974

Kind Code:

A

Abstract:

To provide a new method for efficiently producing a quinazolin-4-one derivative important as a raw material for a medicine, etc.

An objective quinazolin-4-one derivative is produced in a high yield by a method for reacting an N-formylanthranilic acid derivative with formaldehyde by using ammonia and any one or more of acetic acid and ammonium acetate as catalysts.

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Inventors:

TANAKA KAZUO
SATO YOSHIFUMI
YOSHIMURA TAKASHI

Application Number:

JP2006117729A

Publication Date:

November 08, 2007

Filing Date:

April 21, 2006

Export Citation:

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Assignee:

MITSUBISHI GAS CHEMICAL CO

International Classes:

C07D239/74; C07B61/00; C07D239/88

Domestic Patent References:

JP2002338550A	2002-11-27
JP2003212862A	2003-07-30

Foreign References:

WO2005095360A1	2005-10-13
WO2004113307A1	2004-12-29
WO2004054985A1	2004-07-01
WO2003064399A1	2003-08-07

Attorney, Agent or Firm:

Takashi Nagai

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