Title:
METHOD FOR PRODUCING BISPYRAZOLE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2015/166862
Kind Code:
A1
Abstract:
Provided is a production method which enables the production of a high-purity bispyrazole compound while preventing the occurrence of a side reaction.
A method for producing a bispyrazole compound represented by formula (2) by reacting a compound represented by formula (1) with hydrazine, wherein the molar ratio of the compound represented by formula (1) to the hydrazine falls within the range from 1.0:5.2 to 1.0:11.7.
[In formula (1) and formula (2), R1 and R2 independently represent an aryl group which may have a substituent.]
Inventors:
KOJIMA YUKI (JP)
KAKINUMA SHINICHI (JP)
KAKINUMA SHINICHI (JP)
Application Number:
PCT/JP2015/062283
Publication Date:
November 05, 2015
Filing Date:
April 22, 2015
Export Citation:
Assignee:
NIPPON CARBIDE KOGYO KK (JP)
International Classes:
C07D231/12
Domestic Patent References:
| WO2009027346A2 | 2009-03-05 |
Foreign References:
| DE3122261A1 | 1982-12-23 | |||
| JPH08301854A | 1996-11-19 |
Other References:
PINTO D.C.G.A. ET AL.: "New bis(chalcones) and their transformation into bis(pyrazoline) and bis(pyrazole) derivatives", EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, vol. 4, 2003, pages 747 - 55, XP055234188
ELTAMANY E. H. ET AL.: "Synthesis and some reactions of phenylene-1,4-di(1-phenyl-1- propenone)", PAKISTAN JOURNAL OF SCIENTIFIC AND INDUSTRIAL RESEARCH, vol. 28, no. 3, 1985, pages 169 - 72
EL-RAYYES N.R. ET AL.: "Heterocycles. Part 6. Synthesis of new substituted isoxazoles and pyrazoles", JOURNAL OF THE IRAQI CHEMICAL SOCIETY, vol. 9, no. 1-2, 1984, pages 63 - 72
ELTAMANY E. H. ET AL.: "Synthesis and some reactions of phenylene-1,4-di(1-phenyl-1- propenone)", PAKISTAN JOURNAL OF SCIENTIFIC AND INDUSTRIAL RESEARCH, vol. 28, no. 3, 1985, pages 169 - 72
EL-RAYYES N.R. ET AL.: "Heterocycles. Part 6. Synthesis of new substituted isoxazoles and pyrazoles", JOURNAL OF THE IRAQI CHEMICAL SOCIETY, vol. 9, no. 1-2, 1984, pages 63 - 72
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)
Aoki 篤 (JP)
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