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    51.
    发明专利
    失效

    公开(公告)号：JPS6317816B2

    公开(公告)日：1988-04-15

    申请号：JP14660879

    申请日：1979-11-14

    申请人： AMOCO CORP

    发明人： UORUTAA TOOMASU RAIKURU

    IPC分类号： C07C43/275 ,  B01J23/00 ,  B01J23/02 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C37/11 ,  C07C39/15 ,  C07C41/00 ,  C07C67/00

    摘要： An oxidative process for preparing 4,4'-bis(2,6-dihydrocarbylphenols) is provided which comprises contacting with good agitation a disubstituted phenol such as 2,6-di-tertiarybutyl phenol with up to stoichiometric amounts of oxygen in the presence of a small catalytic quantity of a catalyst selected from the group consisting of alkali metal and alkaline earth metal hydroxides, alkali metal and alkaline earth metal salts of a weak acid, amine bases, and mixtures of the same at a temperature from about 50 DEG to 240 DEG C. until a reaction product containing a substantial amount of the corresponding biphenol is formed, said reaction product being substantially free of quinones.

    SEPARATION AGENT
    53.
    发明专利
    SEPARATION AGENT 失效

    公开(公告)号：JPS6248636A

    公开(公告)日：1987-03-03

    申请号：JP18765685

    申请日：1985-08-27

    申请人： DAICEL CHEM

    发明人： TODA FUMIO

    IPC分类号： C07C37/11 ,  C07B31/00 ,  C07B63/02 ,  C07C27/00 ,  C07C39/12 ,  C07C67/00

    摘要： PURPOSE:To provide a separation agent composed of a racemic or optically active 2,2'-dihydroxy-1,1'-biphenanthryl and having excellent clathrating and stereo-regulating capability to enable the separation of a specific compound easily from a mixture by forming a clathrate compound. CONSTITUTION:The recemic or optically active diol compound of formula is used as a separation agent to separate a specific compound from a mixture. The separation process can be carried out easily by forming a clathrate compound from the diol compound and a specific compound in a solution, separating the crystal of the clathrate compound from the mixed solution and removing the compound of formula from the clathrate. Especially, a desired compound and be separated economically from a racemic compound by using an optically active compound of formula. the racemic or optically active compound of formula can be synthesized easily by conventional method.

    PRODUCTION OF BIPHENYL
    56.
    发明专利
    PRODUCTION OF BIPHENYL 失效

    公开(公告)号：JPS60228428A

    公开(公告)日：1985-11-13

    申请号：JP8726284

    申请日：1984-04-27

    申请人： HITACHI CHEMICAL CO LTD

    发明人： TEZUKA TAKAHIRO

    IPC分类号： C07C41/30 ,  B01J19/12 ,  C07B31/00 ,  C07B37/04 ,  C07C1/00 ,  C07C2/82 ,  C07C2/86 ,  C07C17/00 ,  C07C17/26 ,  C07C17/263 ,  C07C27/00 ,  C07C29/32 ,  C07C37/11 ,  C07C41/00 ,  C07C45/00 ,  C07C45/68 ,  C07C51/00 ,  C07C51/353 ,  C07C67/00 ,  C07C253/00 ,  C07C255/65

    摘要： PURPOSE:After irradiation of a specific alpha-azohydroperoxide in an aromatic hydrocarbon solvent with light, an oxygen gas is introduced into the reaction system to enable safe and high-yield production of a biphenyl in no need of high temperature and high pressure with no problems on energy consumption. CONSTITUTION:The objective compound is obtained by dissolving and alpha-azohydroperoxide of formula I [R1, R2 are H, 1-4C alkyl, aryl, polycyclic aromatic aryl where R1=R2=-(CH2)4-7-; R3 is aryl or polycyclic aromatic aryl, which may be substituted with halogens, respectively], formula II [R4, R5 are same as R1, R2; R6, R7 are 1-5C alkyl, COOH, COOR8 (R8 is methyl, ethyl)], formula IIIor IV in an aromatic hydrocarbon solvent of formula VI [R9 is H, methyl, ethyl, methoxy, X (halogen)] or formula VII [R10, R11 are 1-4C alkyl, COOR12 (R12 is R3), CHO, CH2OH], irradiating the solution with light and/or heating it, then introducing an oxygen gas. USE:Material for high molecular chemistry.

    ORTHO-ALKYLATION OF PHENOL
    57.
    发明专利
    ORTHO-ALKYLATION OF PHENOL 失效

    公开(公告)号：JPS60218345A

    公开(公告)日：1985-11-01

    申请号：JP7287284

    申请日：1984-04-13

    申请人： MITSUBISHI PETROCHEMICAL CO

    发明人： IMANARI MAKOTO ,  IKEDA MARIKO

    IPC分类号： C07C37/16 ,  B01J23/00 ,  B01J23/64 ,  B01J23/656 ,  B01J27/13 ,  C07B61/00 ,  C07C27/00 ,  C07C37/11 ,  C07C39/06 ,  C07C39/07 ,  C07C67/00

    摘要： PURPOSE:In the alkylation of phenol by reaction between a specific phenol and a saturated aliphatic alcohol, a trace amount of a platinum metal is added to the manganese oxide catalyst to keep high activity for a long period of time without reduction in catalyst activity, resulting in increased selectivity. CONSTITUTION:The alkylation of a phenol which has at least one of hydrogen atom in ortho positions to the hydroxyl group such as phenol, O-cresol is effected using a catalyst which is prepared by adding a platinum group metal or its compound to a manganese oxide as a catalyst at an atomic ratio of (0.01-100)X 10 platinum group metal/manganese in gas phase at 250-480 deg.C, preferably 300-460 deg.C. The catalyst is used ordinarily in the form of fixed bed and the feed rate of the mixture of starting materials is preferably 0.1-3hr LSV.

    NOVEL ALKYL DISUBSTITUTED PHENOL DERIVATIVE AND ITS PREPARATION
    59.
    发明专利
    NOVEL ALKYL DISUBSTITUTED PHENOL DERIVATIVE AND ITS PREPARATION 失效

    公开(公告)号：JPS58121230A

    公开(公告)日：1983-07-19

    申请号：JP450282

    申请日：1982-01-14

    申请人： SUMITOMO CHEMICAL CO

    发明人： HARADA HARUHISA ,  MAKI HIROSHI

    IPC分类号： C07C37/11 ,  C07C27/00 ,  C07C37/14 ,  C07C39/15 ,  C07C67/00

    摘要： NEW MATERIAL:An alkyl disubstituted phenol derivative of formulaI(R1, R2 are H, methyl; R3, R4 are 1-4C alkyl). EXAMPLE:1,3-Di[2-(2-hydroxy-3-t-butyl-5-methylphenyl)-2-propyl]-benzene. USE:A starting material for a variety of high-performance thermoplastic polymers and for surface active agents and stabilizers or their starting material. PREPARATION:The reaction of an alkyl-disubstituted phenol such as 2-t-butyl-4- metylphenol with a compound selected from compounds of formulas II, III and IV such as 1,3-diisopropylbenzene is carried out in the presence of an acidic condensing agent such as hydrochloric acid at -20-100 deg.C to give the compound of formulaI.