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    • 9. 发明授权
    • Process for preparing silylorganomercaptans
    • 制备甲硅烷基有机硫醇的方法
    • US06433206B1
    • 2002-08-13
    • US10012286
    • 2001-11-15
    • Steven C. GedonMelinda Hale
    • Steven C. GedonMelinda Hale
    • C07R708
    • C07F7/1892
    • A process for preparing an organomercaptan is provided which comprises reacting a sulfide of the general formula (I) ((R1)3—Si—R2—S&Parenclosest;2Sm  (I) in which each R1 is the same or different alkyl group of up to about 6 carbon atoms, aryl group of up to about 10 carbon atoms or alkoxy group of up to about 6 carbon atoms, or at least two of R1 and the silicon atom to which they are bonded form a ring system having up to about 12 ring members with no ethylenic unsaturation and optionally containing one or more heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen, each R2 is the same or different divalent hydrocarbon group containing no ethylenic unsaturation and having up to about 20 carbon atoms and m is 0 to about 8, with hydrogen under hydrogenolysis conditions in the presence of a catalytically effective amount of Group VIII metal catalyst and in the presence of a catalyst poisoning inhibiting amount of a catalyst poisoning inhibitory agent selected from the group consisting of water, except where the mercaptan product contains at least one hydrolyzable silane group, alkanol of from 1 to about 6 carbon atoms, hydrogen sulfide and mixtures thereof to provide organomercaptan product of the general formula (II) in which R1 and R2 each has one of the aforestated meanings.
    • 提供一种制备有机巯基的方法,其包括使通式(I)的硫化物与其中每个R 1相同或不同的最多约6个碳原子的烷基,至多约10个碳原子的芳基或烷氧基 至多约6个碳原子,或至少两个R 1与它们所键合的硅原子形成具有至多约12个环成员的环系统,其中没有烯属不饱和度,并且任选地含有一个或多个选自下组的杂原子 由氧,硫和氮组成,每个R2是相同或不同的不含烯属不饱和基团并且具有至多约20个碳原子且m为0至约8的二价烃基,在氢解条件下,在催化有效 量的VIII族金属催化剂,并且在催化剂中毒抑制量的情况下存在催化剂中毒抑制剂,所述催化剂中毒抑制剂选自水,除了 其中硫醇产物含有至少一个可水解硅烷基团,1至约6个碳原子的链烷醇,硫化氢及其混合物,以提供通式(II)的有机巯基丁酸产物,其中R 1和R 2各自具有上述含义之一 。