Title:
METHOD FOR PRODUCING 3,6-DICHLOROPYRIDAZINE-1-OXIDE
Document Type and Number:
WIPO Patent Application WO/2006/101058
Kind Code:
A1
Abstract:
Disclosed is a method for producing 3,6-dichloropyridazine-1-oxide which is characterized by reacting 3,6-dichloropyridazine with an acid anhydride and a hydrogen peroxide having a concentration of not more than 60% or a urea hydrogen peroxide addition compound.
Inventors:
TSUKAMOTO YOSHIHISA
KUDO NORIAKI
KANEKO TOSHIO
KOMAI HIROYUKI
NAKAGAWA HARUMI
KUDO NORIAKI
KANEKO TOSHIO
KOMAI HIROYUKI
NAKAGAWA HARUMI
Application Number:
PCT/JP2006/305486
Publication Date:
September 28, 2006
Filing Date:
March 20, 2006
Export Citation:
Assignee:
SANKYO AGRO CO LTD (JP)
TSUKAMOTO YOSHIHISA
KUDO NORIAKI
KANEKO TOSHIO
KOMAI HIROYUKI
NAKAGAWA HARUMI
TSUKAMOTO YOSHIHISA
KUDO NORIAKI
KANEKO TOSHIO
KOMAI HIROYUKI
NAKAGAWA HARUMI
International Classes:
C07D237/12
Foreign References:
| JP2004284970A | 2004-10-14 | |||
| JP2002060380A | 2002-02-26 |
Other References:
POLLAK A. ET AL.: "Peroxydichloromaleic acid. New reagent for N-oxidation of heterocyclic compounds", SYNTHESIS, no. 8, 1973, pages 495 - 496, XP003002303
KREGAR-CADEZ P. ET AL.: "Heterocycles. LXXXIX. Pyridazines. XLVII. Novel heterocyclic system, pyrido[2,3-c]pyridazine", JOURNAL OF HETEROCYCLIC CHEMISTRY, vol. 9, no. 2, 1972, pages 351 - 354, XP003002304
KREGAR-CADEZ P. ET AL.: "Heterocycles. LXXXIX. Pyridazines. XLVII. Novel heterocyclic system, pyrido[2,3-c]pyridazine", JOURNAL OF HETEROCYCLIC CHEMISTRY, vol. 9, no. 2, 1972, pages 351 - 354, XP003002304
Attorney, Agent or Firm:
Tsukuni, Hajime (22-12 Toranomon 1-chom, Minato-ku Tokyo 01, JP)
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