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    • 126. 发明授权
    • Hydroxybenzaldoxime O-ethers
    • 羟基苯甲醛肟O-醚
    • US4845287A
    • 1989-07-04
    • US43662
    • 1987-04-28
    • Hans-Ludwig ElbeReinhard Lantzsch
    • Hans-Ludwig ElbeReinhard Lantzsch
    • C07C251/48A01N33/24C07C67/00C07C239/00C07C249/12C07D249/08
    • C07C249/12C07C251/48
    • A process for the preparation of a hydroxybenzaldoxime O-ether of the formula ##STR1## in which R.sup.1 is alkyl, alkenyl or alkinyl, comprising reacting an aminobenzaldoxime O-ether of the formula ##STR2## in which R.sup.1 has the abovementioned meaning, with a diazotizing agent in acidic, aqueous solution, and thermally hydrolyzing the resulting diazonium salt of the formula ##STR3## in which X.crclbar. in an equivalent of an inorganic anion andR.sup.1 has the abovementioned meaning,in acidic, aqueous solution without intermediate isolation.The products are intermediates for agricultural and pharmaceutical chemicals.Novel amino-benzaldoxime O-ethers of the formula ##STR4## wherein R.sup.1 has the above-mentioned meaning.
    • 制备式(I)的羟基苯甲醛肟O-醚的方法,其中R 1是烷基,链烯基或炔基,包括使式(II)的氨基苯甲醛肟O-醚与其中R1具有 上述含义,在酸性水溶液中用重氮化剂,并热解水解所得的式(III)的重氮盐,其中X( - )的当量无机阴离子和R1具有上述含义, 在酸性水溶液中,无需中间隔离。 该产品是农药和化学药品的中间体。 新颖的式(Ia)的氨基 - 苯甲醛肟O-醚,其中R1具有上述含义。