Process for producing 2,3-dihydropyridazine compound

Details Process for producing 2,3-dihydropyridazine compound Process for producing 2,3-dihydropyridazine compound

2011-08-30

2011-08-30

Wilson, James O (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

Reexamination Certificate

active

08008485

ABSTRACT:
A process for producing a 2,3-dihydropyridazine compound represented by the formula (2):wherein R1, R2and R3are the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group which may be substituted with a halogen atom or atoms, an alkenyl group which may be substituted with a halogen atom or atoms, an alkoxy group which may be substituted with a halogen atom or atoms, an alkylthio group, an alkylsulfenyl group, an alkylsulfonyl group or a dialkylamino group;which comprises reacting a salt consisting of bromoacetic acid and an amine compound with a pyridazine compound represented by the formula (1):wherein R1, R2and R3are the same meanings as defined above.

REFERENCES:
patent: 1-316379 (1989-12-01), None
English translation of Degot, et al., SU 642310, published 19790115.
English translation of Nakahama, et al., JP 01316379, published 19891221.

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