Title:
METHOD FOR PRODUCING 3-AMINO-4-HETERYL-2-PYRAZOLIN-5-ONES
Document Type and Number:
Japanese Patent JP2005104863
Kind Code:
A
Abstract:
To provide a simple and efficient method for producing 3-amino-4-heteryl-2-pyrazolin-5-ones.
The method for producing 3-amino-4-heteryl-2-pyrazolin-5-ones represented by formula (1) (wherein R2 is an alkyl group or an aryl group; and L is a heterocyclic group bonded with nitrogen) comprises passing through a compound represented by formula (4) (wherein R1 is an alkyl group; and R2 and L are the same as defined above) obtained from a compound represented by formula (2) (wherein R1' is an alkyl group; and R1 and L are the same as defined above) and a compound represented by formula (3) (wherein R2 is the same as defined above).
Inventors:
ITO TAKAYUKI
Application Number:
JP2003337427A
Publication Date:
April 21, 2005
Filing Date:
September 29, 2003
Export Citation:
Assignee:
FUJI PHOTO FILM CO LTD
International Classes:
C07D231/52; (IPC1-7): C07D231/52
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
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