Method for preparing substituted meta-phenylalkoxynitrobenzenes
    191.
    发明授权
    Method for preparing substituted meta-phenylalkoxynitrobenzenes 失效
    取代的间苯基烷氧基硝基苯的制备方法

    公开(公告)号:US4346242A

    公开(公告)日:1982-08-24

    申请号:US156881

    申请日:1980-06-05

    Applicant: David M. Spatz

    Inventor: David M. Spatz

    CPC classification number: A01N47/30 C07C201/12

    Abstract: Methods for the preparation of substituted meta-phenylalkoxynitrobenzenes and their use as starting materials for the synthesis of herbicidal meta-phenylalkoxyphenylurea.

    Abstract translation: 取代的间苯基烷氧基硝基苯的制备方法及其作为合成除草间苯基烷氧基苯基脲的原料的用途。

    HNS From 2,4,6-trinitrobenzyl chloride and nitrogenous bases
    193.
    发明授权
    HNS From 2,4,6-trinitrobenzyl chloride and nitrogenous bases 失效
    HNS由2,4,6-三硝基苄基氯和含氮碱组成

    公开(公告)号:US4307258A

    公开(公告)日:1981-12-22

    申请号:US165429

    申请日:1980-07-02

    CPC classification number: C07C201/12

    Abstract: 2,4,6,-trinitrobenzyl chloride is converted to HNS (2,2',4,4',-6,6'-hexanostilbene) by reaction with hydroxide ion supplied by aqueous amines and ammonia. The present method increases the yield of HNS substantially over that obtainable by conventional reaction with sodium hydroxide.

    Abstract translation: 通过与由胺水溶液和氨水提供的氢氧化物离子反应,将2,4,6-三硝基苄基氯转化为HNS(2,2',4,4',-6,6'-己rost二烯)。 本发明方法提高了HNS的产率,大大超过了与氢氧化钠的常规反应可获得的产率。

    Ester derivatives of polycarboxylic acids and process for making same
    195.
    发明授权
    Ester derivatives of polycarboxylic acids and process for making same 失效
    多元羧酸的酯衍生物及其制备方法

    公开(公告)号:US4299773A

    公开(公告)日:1981-11-10

    申请号:US91431

    申请日:1979-11-05

    CPC classification number: C07D307/33 C07C201/12 C07D305/12

    Abstract: Novel polyfunctional compounds and a novel process for their preparation are disclosed. These compounds may be converted into the acid or salt forms of cis and trans aconitic acids as well as into a racemic mixture of isocitric acid, alloisocitric acid and the lactones of isocitric acid and alloisocitric acid and their salts. All of the acid and salt forms produced are useful as metal sequestrants and/or detergent builders. The novel polyfunctional compounds can also be saponified to their corresponding alkali metal salts which, in turn, are also metal ion sequestering agents and detergent builders. The polyfunctional compounds are the reaction products obtained from the reaction of selected salts of monoalkyl esters of maleic acid with selected active hydrogen containing compounds.

    Abstract translation: 公开了新型多官能化合物及其制备方法。 这些化合物可以转化为顺式和反式乌头酸的酸或盐形式,以及异柠檬酸,异亚油酸和异柠檬酸和异亮氨酸及其盐的内酯的外消旋混合物。 生成的所有酸和盐形式可用作金属螯合剂和/或洗涤剂助洗剂。 新型多官能化合物也可以皂化成相应的碱金属盐,其又是金属离子螯合剂和洗涤剂助洗剂。 多官能化合物是从所选择的含活性氢化合物的马来酸单烷基酯的选择盐的反应获得的反应产物。

    Preparation of nitro-substituted diphenyl ethers
    197.
    发明授权
    Preparation of nitro-substituted diphenyl ethers 失效
    硝基取代二苯醚的制备

    公开(公告)号:US4287372A

    公开(公告)日:1981-09-01

    申请号:US83925

    申请日:1979-10-11

    CPC classification number: C07C201/12

    Abstract: A method of preparing nitro-substituted diphenyl ethers comprises contacting a salt of a phenol with a nitro-substituted halobenzene in the presence of a phase-transfer reagent under reaction conditions and recovering the reaction product.

    Abstract translation: 制备硝基取代的二苯醚的方法包括在反应条件下在相转移试剂的存在下使苯酚的盐与硝基取代的卤代苯接触并回收反应产物。

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