6-VINYL-2-TERT-BUTOXYNAPHTHALENE AND ITS PRODUCTION

    公开(公告)号:JPH11222452A

    公开(公告)日:1999-08-17

    申请号:JP2309198

    申请日:1998-02-04

    Applicant: TOSOH CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject new compound useful as a raw material for a medicine, an agrochemical, a functional polymer or the like. SOLUTION: This new compound is expressed by formula I. The compound of formula I is obtained by reacting activated magnesium with 6-halogeno-2-t- butoxynaphthalene, e.g. 6-bromo-2-t-butoxynaphthalene in a solvent to provide a Grignard reagent, and reacting the obtained Grignard reagent with a vinyl halide (e.g. vinyl fluoride, vinyl chloride and vinyl bromide) in the presence of a metal catalyst in an inert gas atmosphere such as nitrogen and/or argon in a solvent (e.g. an etheric solvent and an aromatic hydrocarbon-based solvent). The metal catalyst is preferably a transition metal halide such as an iron halide, a nickel halide, a palladium halide and a cobalt halide, and can be combined with a ligand [e.g. 1,2-bis(diphenylphosphino)ethane].

    PRODUCTION OF 2,2,6,6-TETRACHLOROCYCLOHEXANONE

    公开(公告)号:JPH1171320A

    公开(公告)日:1999-03-16

    申请号:JP23384997

    申请日:1997-08-29

    Applicant: TOSOH CORP

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound useful as various intermediate raw materials on an industrial scale at a low cost in high efficiency by reacting cyclohexanone with chlorine in a carboxylic acid solvent using water as a catalyst. SOLUTION: 2,2,6,6-Tetrachlorocyclohexanone is produced by reacting cyclohexanone with chlorine in a carboxylic acid solvent (e.g. acetic acid, propionic acid or butyric acid) using preferably 10-50 wt.% of water as a catalyst at a chlorine/cyclohexanone molar ratio of 4.2-4.5 at 40-100 deg.C. The reaction is preferably carried out by continuously and simultaneously supplying chlorine and cyclohexanone to the solvent containing the catalyst. The reaction liquid obtained after the completion of the reaction can be used as a pyrogallol production raw material without separating the objective compound from the solvent by crystallization, etc.

    PRODUCTION OF ORTHOBROMOPHENOLS
    3.
    发明专利

    公开(公告)号:JPH09157199A

    公开(公告)日:1997-06-17

    申请号:JP32314595

    申请日:1995-12-12

    Applicant: TOSOH CORP

    Abstract: PROBLEM TO BE SOLVED: To selectively, efficiently and inexpensively provide a method for producing the subject compound useful as an intermediate for medicines and agrochemicals, capable of readily purifying by carrying out transalkylation reaction of brominated 4-cumenylphenol with an aromatic hydrocarbon. SOLUTION: (B) 2-Bromo-4-cumenylphenol or 2,6-dibromo-4-cumenylphenol obtained by brominating 4-cumenylphenol in the presence of (A) a Friedel-Crafts catalyst such as aluminum chloride or iron chloride is reacted with (C) an aromatic hydrocarbon such as (chloro)benzene, toluene, xylene, mesitylene, naphthalene, e.g. at 0-150 deg.C, especially 20-100 deg.C to carry out transalkylation to provide the objective 2-bromophenol or 2,6-dibromophenol. Furthermore, the components A and C are each preferably used in amounts of 0.1-2mol and 1-10mol based on 1mol component B.

    Method for producing halogenated biphenyl compounds
    4.
    发明专利
    Method for producing halogenated biphenyl compounds 有权
    生产氢化苯乙烯化合物的方法

    公开(公告)号:JP2008056653A

    公开(公告)日:2008-03-13

    申请号:JP2007017902

    申请日:2007-01-29

    Abstract: PROBLEM TO BE SOLVED: To efficiently and economical provide a halogenated biphenyl compound in a high yield.
    SOLUTION: This method for producing a halogenated biphenyl compound comprises reacting a Grignard reagent prepared from a compound of the general formula (1) [X is a halogen atom; R
    1 is a diarylamino group or the like; (m) is an integer of 0 to 5] in the presence of a transition metal catalyst.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:为了有效和经济地以高产率提供卤代联苯化合物。 解决方案:制备卤化联苯化合物的方法包括使由通式(1)的化合物制备的格氏试剂[X为卤素原子; R 1是二芳基氨基等; (m)为0〜5的整数]。 版权所有(C)2008,JPO&INPIT

    Method for producing vinylbenzoic acid
    5.
    发明专利

    公开(公告)号:JP2004345970A

    公开(公告)日:2004-12-09

    申请号:JP2003141823

    申请日:2003-05-20

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing vinylbenzoic acid, by which the vinylbenzoic acid can efficiently and economically be obtained in a high yield, while a conventional known method for producing the vinylbenzoic acid, comprising subjecting p-chlorostyrene to a Grignard reaction in tetrahydrofuran and then carbonylating the product with carbon dioxide, can not avoid the by-production of polymers in the Grignard reaction process, needs repeated purification processes for removing the polymers from the product contaminated with the polymers, and therefore is not an industrial production method.
    SOLUTION: This method for producing the vinylbenzoic acid, comprising reacting carbon dioxide with a Grignard reagent prepared from a halostyrene, is characterized by using a mixture solvent of an aromatic hydrocarbon with tetrahydrofuran as a reaction solvent.
    COPYRIGHT: (C)2005,JPO&NCIPI

    DISTILLATION OF OXYSTYRENE DERIVATIVE

    公开(公告)号:JP2000327617A

    公开(公告)日:2000-11-28

    申请号:JP32715599

    申请日:1999-11-17

    Applicant: TOSOH CORP

    Abstract: PROBLEM TO BE SOLVED: To enable the distillation of an oxystyrene derivative in a high recovery rate and not forming a polymeric material by distilling the oxystyrene derivative by adding a specific polymerization inhibitor. SOLUTION: This method for distilling an oxystyrene derivative of the formula (R is an alkyl, aryl, arylalkyl or the like) comprises distilling it by adding a nitroso compound (preferably N-nitrosophenylhydroxylamine and/or its salt) and/or a nitro compound (preferably dinitrophenol) as a polymerization inhibitor. As the derivative of the formula, e.g. p-tertiary butoxy styrene and p- acetoxystyrene, useful as a resist raw material can be cited. Further, the adding amount of the polymerization inhibitor is preferably 1-100,000 ppm based on the oxystyrene derivative. Also, the distillation temperature is preferably 20-200 deg.C. Thereby, it becomes possible to distil the oxystyrene derivative in a high recovery rate.

    PRODUCTION OF 2,2,6,6-TETRACHLOROCYCLOHEXANONE

    公开(公告)号:JPH1171321A

    公开(公告)日:1999-03-16

    申请号:JP23385097

    申请日:1997-08-29

    Applicant: TOSOH CORP

    Abstract: PROBLEM TO BE SOLVED: To produce the subject compound useful as intermediate for important pharmaceuticals, intermediate for important agrochemicals, raw material for photosensitive material for resist, etc., by reacting cyclohexanone with chlorine in the presence of a catalyst in a liquid phase under specific condition. SOLUTION: 2,2,6,6-Tetrachlorocyclohexanone is produced by reacting 1 mol of cyclohexanone with preferably 4.2-4.5 mol of chlorine preferably in a solvent (e.g. chlorobenzene) at 60-120 deg.C in the presence of preferably 0.5-5.0 mol.% of a catalyst (e.g. pyridine or triphenylphosphine) in liquid phase while supplying the cyclohexanone preventing the contact with the by-produced hydrogen chloride gas. The cyclohexanone is supplied e.g. directly into the liquid phase e.g. by supplying cyclohexanone into a circulation line of a reaction system consisting of a reactor, a circulation apparatus and a circulation line connecting the apparatuses.

    METHOD FOR PURIFYING ACRYLOXY-γ-BUTYROLACTONE
    8.
    发明专利
    METHOD FOR PURIFYING ACRYLOXY-γ-BUTYROLACTONE 审中-公开
    纯化丙交酯-γ-丁氧基酮的方法

    公开(公告)号:JP2007153854A

    公开(公告)日:2007-06-21

    申请号:JP2005355411

    申请日:2005-12-08

    Inventor: SOGA SHINICHI

    Abstract: PROBLEM TO BE SOLVED: To provide an economically excellent method for providing acryloxy-γ-butyrolactones such as GBLMA, BMGBL and the like in a high recovery rate.
    SOLUTION: The acryloxy-γ-butyrolactone is distilled by adding an N-oxyl compound as a polymerization inhibitor.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 待解决的问题:提供以高回收率提供诸如GBLMA,BMGBL等丙烯酰氧基-γ-丁内酯的经济上优异的方法。 解决方案:通过加入作为阻聚剂的N-氧基化合物蒸馏丙烯酰氧基-γ-丁内酯。 版权所有(C)2007,JPO&INPIT

    Process for producing polyorganosiloxane
    9.
    发明专利
    Process for producing polyorganosiloxane 审中-公开
    生产聚硅氧烷的方法

    公开(公告)号:JP2007077200A

    公开(公告)日:2007-03-29

    申请号:JP2005264141

    申请日:2005-09-12

    Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a polyorganosiloxane which improves workability and can be easily carried out even on an industrial scale.
    SOLUTION: This method for producing a polyorganosiloxane comprises polymerizing a 4 (or 3)-t-butoxy-α- and/or β-dialkylchlorosilylethylbenzene synthesized by the hydrosilylation reaction of a t-butoxystyrene or the like and a tetraalkoxysilane in an alcohol by addition of water, and thereafter adjusting the pH of the obtained reaction solution with an anion-exchange resin.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种提高加工性的聚有机硅氧烷的制造方法,即使在工业规模上也容易进行。 解决方案:这种制备聚有机硅氧烷的方法包括将通过叔丁氧基苯乙烯等的氢化硅烷化反应合成的4(或3)叔丁氧基-α和/或β-二烷基氯甲硅烷基乙基与四烷氧基硅烷聚合 通过加入水,然后用阴离子交换树脂调节所得反应溶液的pH。 版权所有(C)2007,JPO&INPIT

    Method for distilling oxystyrene derivative
    10.
    发明专利
    Method for distilling oxystyrene derivative 有权
    用于分离氧化苯衍生物的方法

    公开(公告)号:JP2006241170A

    公开(公告)日:2006-09-14

    申请号:JP2006165143

    申请日:2006-06-14

    Abstract: PROBLEM TO BE SOLVED: To provide a method for distilling oxystyrene derivative with high recovery rate substantially without polymer formation and with excellent economy.
    SOLUTION: When oxystyrene derivative is distilled, a nitroso compound and/or a nitro compound are added as a polymerization inhibitor.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种基本上没有聚合物形成并具有优异经济性的高回收率蒸馏氧苯乙烯衍生物的方法。 解决方案:当将氧代苯乙烯衍生物蒸馏时,加入亚硝基化合物和/或硝基化合物作为阻聚剂。 版权所有(C)2006,JPO&NCIPI

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