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31 条记录 (耗时 0.041 秒)

    Process for making solid polyhalotriaryl phosphate esters
    6.
    发明授权
    Process for making solid polyhalotriaryl phosphate esters 失效
    制备固体多卤代三芳基磷酸酯的方法

    公开(公告)号：US4897502A

    公开(公告)日：1990-01-30

    申请号：US105776

    申请日：1987-10-07

    申请人： Louis T. Gunkel ,  John Crosby

    发明人： Louis T. Gunkel ,  John Crosby

    IPC分类号： B01J27/138 ,  C07B61/00 ,  C07F9/12

    CPC分类号： C07F9/12

    摘要： A process is provided for making halogen-substituted triaryl phosphate esters which are normally solid under ambient conditions. The process comprises reacting a halogenated phenol with phosphorus oxychloride in the presence of a magnesium chloride catalyst above the melting point of the desired product. After the reaction is complete the product is recovered by adding an alcohol, such as, pentanol, 2-ethyl hexanol or hexanol and cooling the resulting mixture below the melting point of the product.

    Process for preparing 2-(alkylbenzoyl)benzoic acid
    9.
    发明授权
    Process for preparing 2-(alkylbenzoyl)benzoic acid 失效
    制备2-（烷基苯甲酰基）苯甲酸的方法

    公开(公告)号：US4766240A

    公开(公告)日：1988-08-23

    申请号：US42072

    申请日：1987-04-24

    申请人： Louis T. Gunkel ,  John Crosby

    发明人： Louis T. Gunkel ,  John Crosby

    IPC分类号： C07C51/083 ,  B01J27/125 ,  C07B61/00 ,  C07C51/00 ,  C07C51/373 ,  C07C65/34 ,  C07C67/00 ,  C07C59/76

    CPC分类号： C07C51/373

    摘要： An environmentally acceptable process is provided to synthesize a 2-(alkylbenzoyl)benzoic acid suitable for synthesizing a 2-alkylanthraquinone without further purification. Usually the crude product is isolated from the reaction mixture by a succession of steps which generate a large volume of aqueous waste. The present process eliminates or decreases these wastes and produces a product of sufficient purity for synthesizing as 2-alkylanthraquinone.

    摘要翻译： 提供了一种环境可接受的方法来合成适用于合成2-烷基蒽醌的2-（烷基苯甲酰基）苯甲酸，无需进一步纯化。 通常，粗产物通过产生大量含水废物的一系列步骤从反应混合物中分离出来。 本发明方法消除或减少这些废物并产生足够纯度的产物以合成2-烷基蒽醌。

    Halogenated hydrocarbons, useful as insecticide intermediates, and methods for their preparation
    10.
    发明授权
    Halogenated hydrocarbons, useful as insecticide intermediates, and methods for their preparation 失效
    用作杀虫剂中间体的卤代烃及其制备方法

    公开(公告)号：US4210611A

    公开(公告)日：1980-07-01

    申请号：US40455

    申请日：1979-05-18

    申请人： John Crosby ,  Bernard W. H. Terry

    发明人： John Crosby ,  Bernard W. H. Terry

    IPC分类号： B01J27/10 ,  C07B61/00 ,  C07C17/00 ,  C07C17/25 ,  C07C21/02 ,  C07C21/17 ,  C07C21/18 ,  C07C21/19 ,  C07C67/00 ,  C07C17/28

    CPC分类号： C07C21/19 ,  C07C17/25 ,  C07C21/18

    摘要： Halogenated hydrocarbons of formula:RR.sup.1 C.dbd.CH--CH.sub.2 CYZQandRR.sup.1 C.dbd.CH--CH.dbd.CYQ,and mixtures thereof, wherein Y is F, Cl or Br, R is hydrogen or a lower alkyl group, R.sup.1 is a lower alkyl group, Z is Y or Q and Q is W(CF.sub.2).sub.m -- in which W is hydrogen, F or Cl and m is 1 or 2, and a process for their preparation which comprises heating in a polar aprotic solvent, preferably in the presence of an alkali metal halide, a halogenated hydrocarbon of formula RR.sup.1 C--CHX--CH.sub.2 CYZQ wherein R,R.sup.1,Y,Z and Q have the previously defined meanings and X is Cl, Br or I, provided that X is always Br or I when at least one of Y and Z is Br.

    摘要翻译： 式：RR1C = CH-CH2CYZQ和RR1C = CH-CH = CYQ的卤代烃及其混合物，其中Y为F，Cl或Br，R为氢或低级烷基，R1为低级烷基，Z为 Y或Q和Q是W（CF 2）m-，其中W是氢，F或Cl，m是1或2，以及它们的制备方法，其包括在极性非质子溶剂中，优选在碱的存在下加热 金属卤化物，式RR1C-CHX-CH2CYZQ的卤代烃，其中R，R1，Y，Z和Q具有预先定义的含义，X是Cl，Br或I，条件是当X至少为 Y和Z是Br。