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1. 发明授权

US06444853B1 Process for producing aromatic disulfides 失效
标题翻译：芳族二硫化物的制备方法
公开(公告)号：US06444853B1
公开(公告)日：2002-09-03
申请号：US09806850
申请日：2001-04-04
申请人： Isamu Arai , Tutomu Yamaguchi , Yoko Hida
发明人： Isamu Arai , Tutomu Yamaguchi , Yoko Hida
IPC分类号： C07C32124
CPC分类号： C07C319/24 , C07C323/09
摘要： This invention relates to a process for the preparation of aromatic disulfides represented by the formula (II): Yn—Ar—S—S—Ar—Yn (II) wherein Ar represents a hydrocarbon aromatic ring group; Y represents a monovalent electrophilic group, and when n is 2 or more, a plural number of Y's may be the same or different from each other; and n is an integer of 1 to 12, which comprises allowing (A) an aromatic thioether represented by the formula (I): Yn—Ar—S—R (I) wherein Y, Ar and n have the same meanings as defined above; and R represents a monovalent hydrocarbyl group selected from the group consisting of a monovalent tertiary hydrocarbyl group, and benzyl group and a monovalent secondary hydrocarbyl group derived from benzyl group; to react with (B) at least one of the following (1) to (4): (1) bromine; (2)(a) hydrogen bromide and (b) hydrogen peroxide; (3)(c) chlorine, in the presence of a catalytic amount of iodine and/or hydrogen iodide; (4)(d) hydrogen chloride and (b) hydrogen peroxide, in the presence of a catalytic amount of iodine and/or hydrogen iodide.
摘要翻译：本发明涉及一种由式（Ⅱ）表示的芳族二硫化物的制备方法：其中Ar表示烃芳族环基团; Y表示一价亲电子基团，当n为2以上时，多个Y可以彼此相同或不同; n为1〜12的整数，包括使（A）由式（I）表示的芳香族硫醚：其中，Y，Ar和n具有与上述相同的含义; 并且R表示选自一价叔烃基和苄基的一价烃基和衍生自苄基的一价仲烃基;与（B）至少一个（1）至（ 4）（1）溴;（2）（a）溴化氢和（b）过氧化氢;（3）（c）氯，在催化量的碘和/或碘化氢的存在下;（4） d）氯化氢和（b）过氧化氢，在催化量的碘和/或碘化氢的存在下。

2. 发明授权

US06376716B1 Process for the preparation of aromatic sulfur compounds 失效
标题翻译：芳香族硫化合物的制备方法
公开(公告)号：US06376716B1
公开(公告)日：2002-04-23
申请号：US09530741
申请日：2000-05-04
申请人： Isamu Arai , Tutomu Yamaguchi , Yoko Hida
发明人： Isamu Arai , Tutomu Yamaguchi , Yoko Hida
IPC分类号： C07C32100
CPC分类号： C07C319/24 , C07C319/06 , C07C323/09
摘要： A process for the preparation of an aromatic thiophenol represented by the formula (I): Yn—Ar—(SH)m(I), wherein Ar represents an aromatic hydrocarbon; Y represents at least one substituent bonded to a carbon atom constituting the aromatic ring of Ar, which substituent is selected from the group consisting of halogen, nitro, nitrile, sulfone, sulfamoyl and hydrocarbylsulfonyl groups; m is an integer of 1 or more; and n is an integer of 1 or more, which comprises (a) reacting an aromatic thioether represented by the formula (II): Yn—Ar—(SR)m(II), wherein R represents a monovalent secondary or tertiary hydrocarbyl, or a monovalent primary hydrocarbyl group represented by the formula: —CH2—R1 or —CH2—CR2═C (R2)2, wherein R1 represents a monovalent aromatic ring group optionally substituted by a monovalent hydrocarbyl group, and each of R2 is the same or different from each other and represents hydrogen or a monovalent hydrocarbyl group, with (A) a Lewis acid in the presence of a solvent or with a protonic acid, provided that when (A) is a protonic acid, R is not a primary hydrocarbyl group, and (b) optionally hydrolyzing the reaction product from step (a).
摘要翻译：由式（I）表示的芳族苯硫酚的制备方法：Yn-Ar-（SH）m（I），其中Ar表示芳族烃; Y表示与构成芳香环的碳原子键合的至少一个取代基，该取代基选自卤素，硝基，腈，砜，氨磺酰基和烃基磺酰基; m为1以上的整数， n为1以上的整数，其包含（a）使由式（II）表示的芳族硫醚：Yn-Ar-（SR）m（II），其中R表示一价仲或叔烃基，或由式-CH2-R1或-CH2-CR2 = C（R2）2表示的一价一价烃基，其中R1表示任选被一价烃基取代的一价芳族环基团，R2各自相同或彼此不同，代表氢或一价烃基，（A）路易斯酸在溶剂或质子酸存在下，条件是当（A）为质子酸时，R不是主要烃基，和（b）任选地水解步骤（a）的反应产物。

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