Amine salts of phenyl-4-hydroxypyridazines and the preparation and
herbicidal compositions thereof
    4.
    发明授权
    Amine salts of phenyl-4-hydroxypyridazines and the preparation and herbicidal compositions thereof 失效
    苯基-4-羟基哒嗪的胺盐及其制备和除草组合物

    公开(公告)号:US4058390A

    公开(公告)日:1977-11-15

    申请号:US641588

    申请日:1975-12-16

    CPC分类号: C07D237/14

    摘要: Amine salts of 3-phenyl-6-halo-4-hydroxypyridazines of the formula: ##STR1## in which X is a chlorine or bromine atom, R.sub.1 is an alkyl group containing up to 14 carbon atoms, which group may be substituted by a hydroxy group, an alkoxy group containing up to 10 carbon atoms, cyano group, amino group or lower mono- or lower dialkylamino group, an alkenyl group containing up to 6 carbon atoms or a cycloalkyl group containing 5, 6 or 7 carbon atoms, and R.sub.2 and R.sub.3 have the same meaning as R.sub.1 or each is a hydrogen atom, or R.sub.1 and R.sub.2 together with the nitrogen atom of the amine form a 5- or 6-membered heterocyclic group which may also contain oxygen and which may be mono- or di- substituted by alkyl, and herbicidal compositions containing them.

    摘要翻译: 下式的3-苯基-6-卤代-4-羟基哒嗪的胺盐:其中X是氯或溴原子,R1是含有至多14个碳原子的烷基,该基团可以被 羟基,含有至多10个碳原子的烷氧基,氰基,氨基或低级单 - 或低级二烷基氨基,含有至多6个碳原子的链烯基或含有5,6或7个碳原子的环烷基,以及 R2和R3具有与R 1相同的含义或者各自为氢原子,或者R 1和R 2与胺的氮原子一起形成也可含有氧的5-或6-元杂环基,并且其可以是单 - 或 二烷基取代,和含有它们的除草组合物。

    Process for the manufacture of .alpha.-hydroxycarboxylic acid amides
    5.
    发明授权
    Process for the manufacture of .alpha.-hydroxycarboxylic acid amides 失效
    制备α-羟基羧酸酰胺的方法

    公开(公告)号:US4222960A

    公开(公告)日:1980-09-16

    申请号:US45677

    申请日:1979-06-05

    CPC分类号: C07C231/06

    摘要: Process for the manufacture of .alpha.-hydroxycarboxylic acid amides by adding water onto cyanohydrins in an aqueous medium containing 10-60% by weight of the oxo compound on which the cyanohydrin is based, with the aid of a catalyst dissolved in the reaction medium and selected from the group consisting of alkali metal-, alkaline earth metal- and alkylammonium salts of boric acid, at a pH from 7-11.

    摘要翻译: 通过在溶解在反应介质中的催化剂的帮助下,在含有10-60重量%的基于氰醇的氧代化合物的水性介质中,在氰醇上加入水来选择α-羟基羧酸酰胺的方法, 由硼酸的碱金属,碱土金属和烷基铵盐组成的组在7-11的pH下进行。