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8 条记录 (耗时 0.023 秒)

    Process for preparing a S-substituted phosphoro-chloridothiolate
    2.
    发明授权
    Process for preparing a S-substituted phosphoro-chloridothiolate 失效
    制备S-取代的氯代硫酸酯的方法

    公开(公告)号：US4736050A

    公开(公告)日：1988-04-05

    申请号：US916106

    申请日：1986-10-07

    申请人： Yasuhiro Tsujii ,  Tatsuo Isogai ,  Takao Awazu ,  Tokiya Kimura

    发明人： Yasuhiro Tsujii ,  Tatsuo Isogai ,  Takao Awazu ,  Tokiya Kimura

    IPC分类号： B01J21/00 ,  B01J27/00 ,  C07B61/00 ,  C07F9/20

    CPC分类号： C07F9/20

    摘要： A process for preparing a S-substituted phosphorochloridothiolate having the formula: ##STR1## wherein R.sup.1 is a chlorine atom or an alkoxy or phenoxy group which may be substituted, and R.sup.2 is an alkyl, alkenyl, alkynyl, cycloalkyl or phenyl group which may be substituted, which comprises isomerizing an O-substituted phosphorochloridothionate having the formula: ##STR2## wherein R.sup.1 and R.sup.2 are as defined above, in the presence of a Lewis acid catalyst or a phosphorus compound catalyst.

    摘要翻译： 一种制备具有下式的S-取代的氯代硫代硫酸酯的方法：其中R1是氯原子或可被取代的烷氧基或苯氧基，R2是烷基，烯基，炔基，环烷基或苯基 其可以被取代，其包括在路易斯酸催化剂或磷化合物催化剂存在下异构化具有下式的其中R 1和R 2如上所定义的具有下式的其中R 1和R 2的O-取代的氯代硫酸酯。

    Mercapto-substituted pyridine compounds
    3.
    发明授权
    Mercapto-substituted pyridine compounds 失效
    巯基取代的吡啶化合物

    公开(公告)号：US5168113A

    公开(公告)日：1992-12-01

    申请号：US471337

    申请日：1990-01-29

    申请人： Takahiro Haga ,  Yasuhiro Tsujii ,  Tatsuo Isogai ,  Shigeo Murai ,  Hisayoshi Jonishi ,  Tokiya Kimura ,  Hiroshi Sasaki ,  Takao Awazu ,  Toshihiro Tanaka

    发明人： Takahiro Haga ,  Yasuhiro Tsujii ,  Tatsuo Isogai ,  Shigeo Murai ,  Hisayoshi Jonishi ,  Tokiya Kimura ,  Hiroshi Sasaki ,  Takao Awazu ,  Toshihiro Tanaka

    IPC分类号： A01N43/40 ,  C07D213/82 ,  C07D213/89 ,  C07D401/12

    CPC分类号： C07D213/82 ,  A01N43/40 ,  C07D213/89 ,  C07D401/12

    摘要： A mercapto-substituted pyridine compound having formula (I): ##STR1## where R.sub.1 and R.sub.2 are alkyl groups, and n is 0 or 1, and salts thereof and a process for preparing the same are disclosed. The mercapto-substituted pyridine compound is useful as an intermediate for preparing a herbicidal compound.The present invention further provides aminocarbonyl-substituted pyridinesulfinic acid (ACPS) or salts thereof as the precursor of aminosulfonyl-substituted pyridinecarbonic acid amide compound (APCA) which is useful as the starting material for agricultural chemicals, medicine, etc. Moreover, the preparation process of the present invention is an industrially advantageous preparation process which is capable of preparing in a series of steps from mercapto-substituted pyridinecarboxylic acid amide compound (MPCA) or aminocarbonyl-substituted halogenopyridine compound (ACHP) to ACPS or salts thereof, and further to APCA.

    摘要翻译： 公开了具有式（I）的巯基取代的吡啶化合物：其中R 1和R 2是烷基，n是0或1，及其盐及其制备方法。 巯基取代的吡啶化合物可用作制备除草化合物的中间体。 本发明还提供氨基羰基取代的吡啶亚磺酸（ACPS）或其盐作为氨基磺酰基取代的吡啶碳酰胺化合物（APCA）的前体，其可用作农药，药物等的原料。此外，制备方法 本发明是一种工业上有利的制备方法，其能够从巯基取代的吡啶羧酸酰胺化合物（MPCA）或氨基羰基取代的卤代吡啶化合物（ACHP）到ACPS或其盐，以及APCA 。

    Process for producing 2-amino-4,6-dichloropyrimidine
    5.
    发明授权
    Process for producing 2-amino-4,6-dichloropyrimidine 失效
    2-氨基-4,6-二氯嘧啶的制备方法

    公开(公告)号：US4929729A

    公开(公告)日：1990-05-29

    申请号：US304031

    申请日：1989-01-31

    申请人： Takahiro Haga ,  Yasuhiro Tsujii ,  Tatsuo Isogai ,  Shigeo Murai ,  Toshihiro Tanaka

    发明人： Takahiro Haga ,  Yasuhiro Tsujii ,  Tatsuo Isogai ,  Shigeo Murai ,  Toshihiro Tanaka

    IPC分类号： C07D239/42

    CPC分类号： C07D239/42

    摘要： The present invention relates to an industrially advantageous process for producing 2-amino-4,6-dichloropyrimidine, which comprises reacting 2-amino-4,6-dihydroxypyrimidine or its salt with phosphorus oxychloride at a temperature of from 50.degree. to 100.degree. C. in the presence of a solvent and an acid removing agent. Further, the yield of 2-amino-4,6-dichloropyrimidine can be improved by hydrolyzing 4,6-dichloro-2-pyrimidinylphosphoramidic dichloride produced as a by-product of the chlorination reaction to form 2-amino-4,6-dichloropyrimidine. The 2-amino-4,6-dichloropyrimidine produced by the process of the present invention is useful as an intermediate for medicines and agricultural chemicals.