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    • 10. 发明专利
    • Novel methylphosphinic acid compound and herbicidal and miticidal agent
    • 新型甲基磷酸化合物和除草剂和微生物剂
    • JPS5970696A
    • 1984-04-21
    • JP17980082
    • 1982-10-15
    • Meiji Seika Kaisha Ltd
    • MINOWA NOBUTOTACHIBANA KUNITAKAKIKUCHI TAKAHIKOWATANABE TETSUOFUKATSU SHIYUNZOU
    • A01N57/20C07F9/30
    • NEW MATERIAL:The compound of formula I [R
      1 is H; R
      2 is (substituted) 1W4C alkyl, (substituted) 1W4C alkenyl or (substituted) aryl; M
      1 and M
      2 are H, metallic cation, (substituted) ammonium cation, or cation derived from choline molecule; m is reciprocal number of the ionic value of M
      1 cation; n is reciprocal number of the ionic value of M
      2 cation].
      EXAMPLE: [(3-Phenylmethyleneamino-3-carboxy)-propyl-1]-methylphosphinic acid disodium salt.
      USE: A herbicidal and miticidal agent having low toxicity to man and cattle.
      PROCESS: For example, the carbonyl compound of formula III, pereferably an aldehyde, is condensed to the methylphosphine compound of formula II preferably at -10W+50°C for 1W24hr is necessary in the presence of a solvent (preferably a lower alkanol).
      COPYRIGHT: (C)1984,JPO&Japio
    • 新材料:式I化合物[R 1]为H; R 2是(取代的)1-4C烷基,(取代的)1-4C烯基或(取代的)芳基; M 1和M 2均为H,金属阳离子,(取代的)铵阳离子或衍生自胆碱分子的阳离子; m是M 1离子的离子值的倒数; n是M 2阳离子的离子值的倒数。 实施例:[(3-苯基亚甲基氨基-3-羧基) - 丙基] -1-甲基次膦酸二钠盐。 用途:对人和牛具有低毒性的除草和杀螨剂。 方法:例如,式III的羰基化合物,优选为醛,优选在-10- + 50℃下与式II的甲基膦化合物缩合1-24小时,在溶剂存在下(优选为 低级链烷醇)。