Process for producing N-chlorocarbonyl isocyanide dichloride
    1.
    发明授权
    Process for producing N-chlorocarbonyl isocyanide dichloride 失效
    制备N-氯羰基异腈二氯化物的方法

    公开(公告)号:US3956089A

    公开(公告)日:1976-05-11

    申请号:US544021

    申请日:1975-01-24

    摘要: N-chlorocarbonyl isocyanide dichloride is prepared by chlorinating methyl isocyanate and/or methyl carbamic acid chloride in solution in the presence of ultraviolet light at a temperature in the range of from 30.degree. to 120.degree.C. The temperature pattern during the reaction is controlled in relation to the concentration of methyl isocyanate in the reaction mixture such that low temperatures are maintained for high concentrations while high temperatures are maintained with low concentrations. Thus, when a temperature of from 30.degree.-40.degree.C is maintained during the reaction, the concentration of methyl isocyanate in the reaction mixture is substantially more than 50 percent; when the temperature is increased to 65.degree. to 75.degree.C, the concentration of methyl isocyanate is in the range of 50 percent to 10 percent; and when the temperature is increased above 75.degree.C, the concentration of methyl isocyanate is substantially below 10 percent.

    摘要翻译: 氯化异氰酸甲酯和/或甲基氨基甲酸氯化物在紫外线的存在下,在30〜120℃的温度范围内,通过氯化甲基氨基甲酰氯来制备N-氯羰基异氰化物二氯化物。反应过程中的温度控制在 与反应混合物中甲基异氰酸酯的浓度的关系,使得在高浓度下保持低温保持高浓度,同时以低浓度保持高温。 因此,当反应期间保持30〜40℃的温度时,反应混合物中甲基异氰酸酯的浓度大致超过50%; 当温度升高至65℃至75℃时,异氰酸甲酯的浓度在50%至10%的范围内; 当温度升高到75℃以上时,异氰酸甲酯的浓度显着低于10%。

    Preparation of trichloromethyl-trifluoro methyl-benzenes
    2.
    发明授权
    Preparation of trichloromethyl-trifluoro methyl-benzenes 失效
    三氯甲基 - 三氟甲基苯的制备

    公开(公告)号:US4079090A

    公开(公告)日:1978-03-14

    申请号:US731478

    申请日:1976-10-12

    CPC分类号: C07C17/202

    摘要: A process for preparing a xylene which is fluorinated and chlorinated in the side chain, having the formula ##STR1## wherein X represents hydrogen or fluorine andY represents hydrogen or chlorine andR.sup.1 and R.sup.2 are identical or different and represent hydrogen, halogen, a trifluoromethyl or trichloromethyl group or an aliphatic or aromatic radical andR.sup.1 and R.sup.2 can be bonded via hydrocarbon members to form an aromatic ring,By contacting a compound of the formula ##STR2## wherein X, R.sup.1 and R.sup.2 have the above-mentioned meanings, WITH A COMPOUND OF THE FORMULA ##STR3## wherein X, R.sup.1 and R.sup.2 have the above-mentioned meanings, in the presence of a halogen transfer catalyst at elevated temperature.

    摘要翻译: 一种制备在侧链中氟化和氯化的二甲苯的方法,其具有式(I)其中X表示氢或氟,Y表示氢或氯,并且R 1和R 2相同或不同,表示氢,卤素 ,三氟甲基或三氯甲基或脂族或芳族基团,R 1和R 2可以通过烃成员键合形成芳环。通过接触式(II)的化合物,其中X,R 1和R 2具有上述 (III)的化合物,其中X,R 1和R 2具有上述含义,在卤素转移催化剂存在下在升高的温度下进行。

    Process for the preparation of tetrachloropyrimidine
    5.
    发明授权
    Process for the preparation of tetrachloropyrimidine 失效
    四氯嘧啶的制备方法

    公开(公告)号:US4026892A

    公开(公告)日:1977-05-31

    申请号:US626414

    申请日:1975-10-28

    IPC分类号: C07D239/30 C07D239/20

    CPC分类号: C07D239/30 C07C255/00

    摘要: A process for preparing tetrachloropyrimidine comprising reacting 2-cyano-1,2-(dichlorovinyl)-isocyanide-dichloride of the formulaNC -- CCl = CCl -- N = CCl.sub.2with a Friedel-Crafts compound at an elevated temperature. The resulting tetrachloropyrimidine can be used as a reactive component for the preparation of reactive dyestuffs.

    摘要翻译: 一种制备四氯嘧啶的方法,包括在升高的温度下将式NC-CCl = CCl-N = CCl 2的2-氰基-1,2-(二氯乙烯基) - 异氰化二氯与Friedel-Crafts化合物反应。 所得的四氯嘧啶可用作活性染料制备的反应组分。