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    M-PHENYLENEDIAMINE DERIVATIVE AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR PRODUCED THEREFROM
    82.
    发明专利
    M-PHENYLENEDIAMINE DERIVATIVE AND ELECTROPHOTOGRAPHIC PHOTORECEPTOR PRODUCED THEREFROM 失效

    公开(公告)号：JPH05117210A

    公开(公告)日：1993-05-14

    申请号：JP27573691

    申请日：1991-10-23

    申请人： MITA INDUSTRIAL CO LTD

    发明人： MIZUTA YASUSHI ,  TSUJITA MITSUSHI ,  TANAKA SAKUSHIRO ,  NAKAMORI HIDEO

    IPC分类号： G03G5/06 ,  C07C211/54 ,  C07C217/80 ,  C07C217/82 ,  C07C217/90

    摘要： PURPOSE:To provide a new m-phenylenediamine derivative having excellent charge transfer capability and light stability and suitable as a charge transfer material of an electrophotographic photoreceptor having high sensitivity and excellent durability and useful for an electrostatic copier, a laser beam printer, etc. CONSTITUTION:The compound of formula I [R to R are H, (substituted) alkyl or alkoxy; (n) is integer of 1-5], e.g. the compound of formula II. The compound can be produced by reacting a compound of formula (a) with a compound of formula (b) (X is halogen) in the presence of a copper catalyst and a basic substance and reacting the resultant compound of formula (c) with a compound of formula (d) in the presence of a copper catalyst and a basic substance. The NH2 group in the compound of formula (a) is preferably acetylated beforehand to obtain the monosubstituted compound of formula (c). Since the compound contains a terphenyl structure known as a quencher introduced into the molecule, it exhibits high charge-transfer capability and excellent light stability. Accordingly, an electrophotographic photoreceptor having the above effects can be produced by forming a photosensitive layer containing the above compound on an electrically conductive substrate.

    PRODUCTION OF O-SUBSTITUTED AMINOPHENOL DERIVATIVE
    83.
    发明专利
    PRODUCTION OF O-SUBSTITUTED AMINOPHENOL DERIVATIVE 失效

    公开(公告)号：JPH04342548A

    公开(公告)日：1992-11-30

    申请号：JP14383991

    申请日：1991-05-20

    申请人： KONISHIROKU PHOTO IND

    发明人： KUBOTA TORU ,  MIZUKURA NOBORU

    IPC分类号： B01J31/02 ,  C07B61/00 ,  C07C213/06 ,  C07C217/82 ,  C07C311/08 ,  C07D279/12 ,  C07D295/08 ,  G03C1/34

    摘要： PURPOSE:To obtain an O-substituted aminophenol derivative useful as an antioxidant or an intermediate for various valuable compounds in a short time in high yield. CONSTITUTION:The objective O-substituted aminophenol derivative of formula II (R is aliphatic group) can be produced in high yield in a short time (30min to 10hr, preferably 1 to 8hr) by etherifying an aminophenol derivative of formula I (A is substituent; (n) is integer of 0-4; R1 and R2 are H or substituent; R1 and R2 may together form a heterocyclic group; R1 and R2 are not H at the same time) with an aliphatic halide (preferably aliphatic bromide) and an alkali in the presence of a quaternary ammonium salt (e.g. tetraalkyl ammonium salt, alkyl aryl ammonium salt and pyridinium salt) at 20-200 deg.C (preferably 40-150 deg.C).

    CARBAMIC ACID ESTER DERIVATIVE AND ITS PRODUCTION
    85.
    发明专利
    CARBAMIC ACID ESTER DERIVATIVE AND ITS PRODUCTION 失效

    公开(公告)号：JPH04139163A

    公开(公告)日：1992-05-13

    申请号：JP26027090

    申请日：1990-09-28

    申请人： CHISSO CORP

    发明人： FUJITA ATSUKO ,  ONCHI YUICHI ,  SATO KOJI ,  HIROSE HIROAKI

    IPC分类号： A01N47/20 ,  C07C213/02 ,  C07C217/82 ,  C07C265/12 ,  C07C269/02 ,  C07C271/28

    摘要： NEW MATERIAL:A carbamic acid ester derivative expressed by formula I [R is 1-4C alkyl, (halogen-substituted) alkyl, alkenyl, alkynyl or cycloalkyl; R' is lower alkyl]. EXAMPLE:1-Methoxycarbonyl-2-methyl-2-propenyl (2'-fluoro-5'-methoxyphenyl) carbamate. USE:An intermediate for producing a phenylcarbamic acid ester having weedcidal activity. The intermediate is simply obtained by chlorinating a new material expressed by formula I obtained in a short process from readily available fluorobenzene or 2-fluoro-5-substituted oxyaniline. PREPARATION:An isocyanate derivative expressed by formula II is made to react with an ester derivative of a hydroxyalkenoic acid expressed by formula III to provide the carbamic acid ester derivative expressed by formula I.

    PRODUCTION OF 4-FLUOROANILINE DERIVATIVE
    88.
    发明专利
    PRODUCTION OF 4-FLUOROANILINE DERIVATIVE 失效

    公开(公告)号：JPH01238560A

    公开(公告)日：1989-09-22

    申请号：JP6028988

    申请日：1988-03-16

    申请人： CENTRAL GLASS CO LTD

    发明人： NEGISHI JUNJI ,  KAWAI TOSHIKAZU

    IPC分类号： C07C205/37 ,  B01J31/28 ,  C07B39/00 ,  C07B43/04 ,  C07B61/00 ,  C07C67/00 ,  C07C201/00 ,  C07C209/00 ,  C07C209/36 ,  C07C211/52 ,  C07C213/00 ,  C07C213/02 ,  C07C217/82 ,  C07C217/84

    摘要： PURPOSE:To easily obtain the title compound in high selectivity and yield by simultaneous hydrogenation and fluorination of a nitrobenzene derivative using hydrogen and hydrofluoric acid in the presence of a hydrogenation catalyst, hydrochloric acid, and a fluorine-containing acid. CONSTITUTION:A compound of formula (R1-R4 are perhaloalkyl, perhaloalkoxy, further R2-R4 are H, halogen, alkyl) is allowed to react with hydrogen and hydrofluoric acid in the presence of a hydrogenation catalyst, especially Pt, hydrofluoric acid and a fluorine-containing acid (especially HBF4) at 0.1-10kg/cm at 30-80 deg.C to produce the subject compound of formula II which is used as an intermediate of fungicide, herbicide and medicines with no use of a toxic catalyst under mild reaction condition. The amount of the catalyst is 0.01-5mol.% based on the starting substance and it is not consumed by reaction and can be recovered easily and used again.

    PRODUCTION OF AMINOPHENOL ALKYL ETHERS
    89.
    发明专利
    PRODUCTION OF AMINOPHENOL ALKYL ETHERS 失效

    公开(公告)号：JPH01157940A

    公开(公告)日：1989-06-21

    申请号：JP31503787

    申请日：1987-12-12

    申请人： MITSUI PETROCHEMICAL IND

    发明人： SHIGESHIRO YOUZOU

    IPC分类号： C07C213/06 ,  B01J31/02 ,  C07B61/00 ,  C07C67/00 ,  C07C213/00 ,  C07C217/82 ,  C07C217/84 ,  C07C255/59

    摘要： PURPOSE:To easily obtain the title compound useful as a raw material for azo dye, agricultural chemicals, etc., in high yield and selectivity, by reacting aminophenols with a carbonic acid compound using a specific solvent and a specific catalyst, thereby selectively performing O-alkylation reaction. CONSTITUTION:The objective compound such as anisidine can be produced by the O-alkylation reaction of (A) aminophenols of formula I (R1 is halogen, OH, cyano, nitro, alkyl, alkoxy, ester or phenyl; n is 0-4) (e.g., m-aminophenol) with (B) a carbonic acid compound having bivalent alkyl group and expressed by formula II [R2 and R3 are (substituted) 1-4C alkyl] (e.g., dimethyl carbonate) in the presence of (C) a tertiary amine compound (e.g., dimethyl-acetamide) and/or a sulfoxide compound (e.g., dimethyl sulfoxide) as a solvent and (D) a tertiary amine compound (e.g., dimethyl-acetamid) and/or a phosphine compound (e.g., triphenyl phosphine) as a catalyst.