申请人:Sumitomo Chemical Company, Limited
公开号:EP1932835A1
公开(公告)日:2008-06-18
A process for producing a 2,3-dihydropyridazine compound represented by the formula (2):
wherein R1, R2 and R3 are 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, R2 and R3 are the same meanings as defined above.
一种生产由式(2)表示的 2,3-二氢哒嗪化合物的工艺:
其中 R1、R2 和 R3 相同或不同,且各自代表氢原子、卤素原子、可被一个或多个卤素原子取代的烷基、可被一个或多个卤素原子取代的烯基、可被一个或多个卤素原子取代的烷氧基、烷硫基、烷基亚磺酰基、烷基磺酰基或二烷基氨基;该工艺包括使由溴乙酸和胺化合物组成的盐与式 (1) 所代表的哒嗪化合物反应:
其中 R1、R2 和 R3 的含义与上述定义相同。