Process for preparation of halogenated or pseudohalogenated cyclic
organic compounds
    1.
    发明授权
    Process for preparation of halogenated or pseudohalogenated cyclic organic compounds 失效
    制备卤化或假卤代环状有机化合物的方法

    公开(公告)号:US5817890A

    公开(公告)日:1998-10-06

    申请号:US401254

    申请日:1995-03-09

    摘要: The present invention relates to new fluorinated hexane compounds corresponding to the following general formula (II): ##STR1## in which X'.sub.2, X'.sub.3, and X'.sub.4 are the same or different, and denote a halogen or a pseudohalogen, preferably a halogen, more preferably chlorine and fluorine, with the condition that, when R.sub.1 is hydroxyl, cyano, amido, imido, ethoxy, benzyloxy, cyclohexyloxy and tert-butoxy, not all the halogens can simultaneously be chlorine and R.sub.4, R.sub.3 and R.sub.5 are simultaneously equal to H; R.sub.1 denotes a hydrogen, a hydrocarbon chain such as an alkyl chain, alkoxy, cycloalkyl ether, an aromatic group, aromatic ether or an alkoxy, carbonyl, carboxyl or acyloxy, cyano, amido, imido or hydroxyl group; R.sub.4 denotes a hydrogen, a fluorine atom, a hydrocarbon chain such as, for example, an alkyl chain, an aromatic group or a carbonyl, carboxyl or carboxamide group or else a radical joined to the hexane ring by a chalcogen or by an element of Group V, preferably of the first Period, such as an amido, alkoxy or acyloxy group; in which the radicals R.sub.3 and R.sub.5, which are different or preferably the same, denote a fluorine, or preferably hydrogen, atom or also a hydrocarbon chain as defined above in the case of R.sub.4.

    摘要翻译: 本发明涉及对应于以下通式(II)的新的氟化己烷化合物:其中X'2,X'3和X'4相同或不同,表示卤素或假卤素, 优选卤素,更优选氯和氟,条件是当R1是羟基,氰基,酰氨基,亚氨基,乙氧基,苄氧基,环己氧基和叔丁氧基时,不是所有的卤素都可以同时为氯,R4,R3和R5 同时等于H; R 1表示氢,烃链如烷基链,烷氧基,环烷基醚,芳族基团,芳族醚或烷氧基,羰基,羧基或酰氧基,氰基,酰胺基,亚氨基或羟基; R4表示氢,氟原子,烃链,例如烷基链,芳族基团或羰基,羧基或羧酰胺基团,或者由硫属化合物连接到己烷环上的基团,或者由 优选第一阶段的V族如酰氨基,烷氧基或酰氧基; 其中不同或优选相同的基团R3和R5表示在R4的情况下如上所定义的氟或优选氢原子或烃链。

    Synthesis intermediates containing a hexane ring and processes for their
preparation
    2.
    发明授权
    Synthesis intermediates containing a hexane ring and processes for their preparation 失效
    含有己烷环的合成中间体及其制备方法

    公开(公告)号:US5424460A

    公开(公告)日:1995-06-13

    申请号:US139049

    申请日:1993-10-21

    摘要: The present invention relates to new fluorinated hexane compounds corresponding to the following general formula (II): ##STR1## in which X'.sub.2, X'.sub.3 and X'.sub.4 are the same or different, and denote a halogen or a pseudohalogen, preferably a halogen, more preferably chlorine and fluorine, with the condition that, when R.sub.1 is hydroxyl, cyano, amido, imido, ethoxy, benzyloxy, cyclohexyloxy and tert-butoxy, not all the halogens can simultaneously be chlorine and R.sub.4, R.sub.3 and R.sub.5 are simultaneously equal to H;R.sub.1 denotes a hydrogen, a hydrocarbon chain such as an alkyl chain, alkoxy, cycloalkyl ether, an aromatic group, aromatic ether or an alkoxy, carbonyl, carboxyl or acyloxy, cyano, amido, imido or hydroxyl group;R.sub.4 denotes a hydrogen, a fluorine atom, a hydrocarbon chain such as, for example, an alkyl chain, an aromatic group or a carbonyl, carboxyl or carboxamide group or else a radical joined to the hexane ring by a chalcogen or by an element of Group V, preferably of the first Period, such as an amido, alkoxy or acyloxy group;in which the radicals R.sub.3 and R.sub.5, which are different or preferably the same, denote a fluorine, or preferably hydrogen, atom or also a hydrocarbon chain as defined above in the case of R.sub.4.

    摘要翻译: 本发明涉及对应于以下通式(II)的新的氟化己烷化合物:其中X'2,X'3和X'4相同或不同,并且表示卤素或假卤素,优选 卤素,更优选氯和氟,条件是当R1是羟基,氰基,酰胺基,亚氨基,乙氧基,苄氧基,环己氧基和叔丁氧基时,不是所有的卤素都可以同时是氯,R4,R3和R5是 同时等于H; R 1表示氢,烃链如烷基链,烷氧基,环烷基醚,芳族基团,芳族醚或烷氧基,羰基,羧基或酰氧基,氰基,酰胺基,亚氨基或羟基; R4表示氢,氟原子,烃链,例如烷基链,芳族基团或羰基,羧基或羧酰胺基团,或者由硫属化合物连接到己烷环上的基团,或者由 优选第一阶段的V族如酰氨基,烷氧基或酰氧基; 其中不同或优选相同的基团R3和R5表示在R4的情况下如上所定义的氟或优选氢原子或烃链。

    Process for phenol alkylthiolation and its application to the synthesis
of 4-acyl-2-alkylthiophenols
    9.
    发明授权
    Process for phenol alkylthiolation and its application to the synthesis of 4-acyl-2-alkylthiophenols 失效
    酚醛酸酯化方法及其在4-乙酰基-2-羟基苯乙酮合成中的应用

    公开(公告)号:US5113019A

    公开(公告)日:1992-05-12

    申请号:US607224

    申请日:1990-11-05

    CPC分类号: C07C319/14 C07C319/20

    摘要: The invention relates to the preparation of alkylthiophenols by reaction of a dialkyl disulphide with a phenol.In the process according to the invention, the reaction is carried out in the presence of aluminum chloride or of ferric chloride in a solvent of the alkylbenzene type or, soley in the case of methylthiolation, in an excess of dimethyl disulphide.This process makes it possible, in particular to obtain, with a selectivity and in a yield which are excellent, 2-alkylthiophenols which may then be converted into 4-acyl-2-alkylthiophenols by means of a reaction at a temperature ranging from 40.degree. to 100.degree. C. with a complex BF.sub.3 :2RCOOH where R denotes an alkyl or propenyl radical, in a proportion of 10 to 15 moles of complex per mole of 2-alkylthiophenol.

    摘要翻译: 本发明涉及通过二烷基二硫醚与苯酚的反应来制备烷基硫酚。 在根据本发明的方法中,反应在氯化铝或氯化铁存在下,在烷基苯类溶剂中或在甲硫醇化反应的情况下在过量二甲基二硫化物中进行。 该方法特别可以通过选择性和产率优异的2-烷基硫酚获得,然后可以通过在40℃的温度下反应转化成4-酰基-2-烷基硫酚 至100℃,其中R表示烷基或丙烯基,其摩尔比为10-35摩尔配合物/摩尔2-烷基苯硫酚。