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    • 3. 发明申请
    • PROCESS FOR PRODUCING IMIDAZO[1,2-b]PYRIDAZINE COMPOUND
    • 制备咪唑并[1,2-b]吡啶化合物的方法
    • US20100234597A1
    • 2010-09-16
    • US12064832
    • 2006-08-22
    • Ichiro KomotoKazuaki SasakiTomohiko Gotou
    • Ichiro KomotoKazuaki SasakiTomohiko Gotou
    • C07D487/04
    • C07D487/04
    • A process for producing an imidazo[1,2-b]pyridazine 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, or an alkoxy group which may be substituted with a halogen atom or atoms, which comprises reacting a 2,3-dihydropyridazine compound represented by the formula (1): wherein R1, R2 and R3 are the same meanings as defined above, with a phosphorus oxyhalide in the presence of an organic base which is in an amount of 0.5 mole or more relative to 1 mole of the 2,3-dihydropyridazine compound and 1 mole or less relative to 1 mole of the phosphorus oxyhalide.
    • 一种制备由式(2)表示的咪唑并[1,2-b]哒嗪化合物的方法:其中R 1,R 2和R 3相同或不同,各自表示氢原子,卤素原子,可以 被卤原子或原子取代,可被卤原子或原子取代的烯基,或可以被卤原子或原子取代的烷氧基,其包括使由2,3-二氢哒嗪化合物 式(1):其中R1,R2和R3与上述定义相同,在有机碱的存在下,相对于1摩尔2,3的量,为0.5摩尔以上 - 二氢哒嗪化合物,相对于1摩尔的卤氧化磷为1摩尔以下。
    • 5. 发明授权
    • Process for producing imidazo[1,2-b]pyridazine compound
    • 咪唑并[1,2-b]哒嗪化合物的制备方法
    • US08334379B2
    • 2012-12-18
    • US12064832
    • 2006-08-22
    • Ichiro KomotoKazuaki SasakiTomohiko Gotou
    • Ichiro KomotoKazuaki SasakiTomohiko Gotou
    • C07D487/00
    • C07D487/04
    • A process for producing an imidazo[1,2-b]pyridazine 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, or an alkoxy group which may be substituted with a halogen atom or atoms, which comprises reacting a 2,3-dihydropyridazine compound represented by the formula (1): wherein R1, R2 and R3 are the same meanings as defined above, with a phosphorus oxyhalide in the presence of an organic base which is in an amount of 0.5 mole or more relative to 1 mole of the 2,3-dihydropyridazine compound and 1 mole or less relative to 1 mole of the phosphorus oxyhalide.
    • 一种制备由式(2)表示的咪唑并[1,2-b]哒嗪化合物的方法:其中R 1,R 2和R 3相同或不同,各自表示氢原子,卤素原子,可以 被卤原子或原子取代,可被卤原子或原子取代的烯基,或可以被卤原子或原子取代的烷氧基,其包括使由2,3-二氢哒嗪化合物 式(1):其中R1,R2和R3与上述定义相同,在有机碱的存在下,相对于1摩尔2,3的量,为0.5摩尔以上 - 二氢哒嗪化合物,相对于1摩尔的卤氧化磷为1摩尔以下。