Process for preparation of carbonyl sulfide
    1.
    发明授权
    Process for preparation of carbonyl sulfide 失效
    羰基硫化物的制备方法

    公开(公告)号:US4224300A

    公开(公告)日:1980-09-23

    申请号:US068743

    申请日:1979-08-22

    IPC分类号: C22C19/05 C01B31/26 C22C27/06

    CPC分类号: C01B31/267

    摘要: Carbon monoxide is reacted with sulfur in the vapor phase at 250.degree.-650.degree. C. to prepare carbonyl sulfide, wherein a reactor is used, in which at least the inner surface is made of an alloy consisting essentially of, based on the weight of the alloy, 20-60% of Cr, 40-65% of Ni, 0-10% of Mo, 0-4% of Nb+Ta, and 0-3% of Fe. The reactor not only possesses good corrosion resistance to the gaseous reaction mixture, but also minimizes the reduction in the purity of carbonyl sulfide produced, which reduction occurs with the lapse of operation time.

    摘要翻译: 一氧化碳与蒸气相中的硫在250-650℃下反应,制得羰基硫化物,其中使用反应器,其中至少内表面由合金组成,其合金基本上由 合金中含有20-60%的Cr,40-65%的Ni,0-10%的Mo,0-4%的Nb + Ta和0-3%的Fe。 反应器不仅对气态反应混合物具有良好的耐腐蚀性,而且还使产生的硫化硫的纯度降低最小化,随着操作时间的流逝,这种减少发生。

    Process for the preparation of O,O-dialkyl-S-benzyl thiophosphates
    2.
    发明授权
    Process for the preparation of O,O-dialkyl-S-benzyl thiophosphates 失效
    制备O,O-二烷基-S-苄基硫代磷酸酯的方法

    公开(公告)号:US4064200A

    公开(公告)日:1977-12-20

    申请号:US648756

    申请日:1976-01-13

    IPC分类号: C07F9/165 C07F9/17

    CPC分类号: C07F9/17 C07F9/1653

    摘要: O,O-Dialkyl-S-benzyl thiophosphates are obtained by reacting a diester of phosphorous acid such as dimethyl phosphite or diethyl phosphite, in an organic solvent such as toluene or xylene which is sparingly soluble or insoluble in water, with sulfur and an alkali or alkaline earth metal hydroxide or oxide such as NaOH or Ca(OH).sub.2, extracting the reaction product with water and then reacting the extract with a benzyl halide. In this manner, O,O-dialkyl-S-benzyl thiophosphates useful as agricultural and horticultural bactericidal and insecticidal agents are industrially advantageously obtained in a high purity and in a high yield.

    摘要翻译: O,O-二烷基-S-苄基硫代磷酸酯通过亚磷酸二酯或亚磷酸二乙酯在有机溶剂如甲苯或微溶于水或不溶于水的二甲苯与硫和碱反应得到, 或碱土金属氢氧化物或氧化物如NaOH或Ca(OH)2,用水萃取反应产物,然后使提取物与苄基卤反应。 以这种方式,用作农业和园艺杀菌和杀虫剂的O,O-二烷基-S-苄基硫代磷酸盐在工业上有利地以高纯度和高产率获得。

    Process for producing thiolcarbamates
    3.
    发明授权
    Process for producing thiolcarbamates 失效
    生产硫代氨基甲酸盐的方法

    公开(公告)号:US4248779A

    公开(公告)日:1981-02-03

    申请号:US948346

    申请日:1978-10-04

    CPC分类号: C07D295/21

    摘要: A thiolcarbamate having the formula ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and respectively represent an alkyl, alkoxy, alkenyl, cycloalkyl, hydroxyalkyl, phenyl or benzyl group and R.sub.1 and R.sub.2 can form a ring by binding each other with or without oxygen atom; and R.sub.3 represents a lower alkyl or benzyl group or a substituted benzyl group having one or two substituent of halogen atom, alkyl, alkoxy, alkylthio, nitro, or cyano group, which comprises reacting carbonyl sulfide with a sec-amine having the formula ##STR2## wherein R.sub.1 and R.sub.2 are defined above, in an aqueous medium and then reacting a halogenated hydrocarbon having the formulaX--R.sub.3 (IV)wherein R.sub.3 is defined above and X represents a halogen atom, in an aqueous medium.

    摘要翻译: 具有式(VI)的硫代氨基甲酸酯其中R 1和R 2相同或不同并分别表示烷基,烷氧基,烯基,环烷基,羟基烷基,苯基或苄基,并且R 1和R 2可以通过彼此结合而形成环 有或没有氧原子; 并且R 3表示低级烷基或苄基或具有一个或两个卤原子,烷基,烷氧基,烷硫基,硝基或氰基取代基的取代苄基,其包括使硫化羰与具有式 (I)其中R 1和R 2如上定义,在水性介质中,然后在水性介质中使具有式X-R3(Ⅳ)的卤代烃,其中R3定义如上,X表示卤素原子。