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    PRODUCTION OF 5-CYANOPENTANAL
    21.
    发明专利
    PRODUCTION OF 5-CYANOPENTANAL 失效

    公开(公告)号：JPH0940629A

    公开(公告)日：1997-02-10

    申请号：JP19293895

    申请日：1995-07-28

    Applicant: UBE INDUSTRIES

    Inventor： KAKEYA NOBORU ,  ABE KOJI

    IPC: C07C253/00 ,  C07C253/02 ,  C07C255/17

    Abstract: PROBLEM TO BE SOLVED: To produce 5-cyanopentanal useful as a production raw material for hexamethylenediamine useful as a raw material for nylon 66 (an industrial resin) and as a raw material and intermediate for various chemicals in high yield without necessitating complicate separation of by-products and causing the corrosion of the apparatus. SOLUTION: The objective 5-cyanopentanal is produced by reacting 1- formyloxy-2-nitrosocyclohexane, 1-hydroxy-2-nitrosocyclohexane or 2- hydroxycyclohexanoxime with formic acid preferably at 60-130 deg.C in liquid phase under normal pressure or positive pressure. Preferably, the amounts of the reagents are 10-300 times weight for formic acid and 1-300 times weight for the reaction solvent (e.g. acetonitrile or formic acid) based on the 1-formyloxy-2- nitrosocyclohexane, 1-hydroxy-2-nitrosocyclohexane or 2-hydroxycyclohexanone oxime. The compound is easily separable from the system by distillation. The compound is also useful as a raw material for ε-caprolactam known as a raw material for nylon 6.

    5-HALOOROTIC ACID COMPOUND AND ITS PREPARATION
    28.
    发明专利
    5-HALOOROTIC ACID COMPOUND AND ITS PREPARATION 失效

    公开(公告)号：JPS5867677A

    公开(公告)日：1983-04-22

    申请号：JP16634281

    申请日：1981-10-20

    Applicant: UBE INDUSTRIES

    Inventor： FUKUI KIYOSHI ,  KAKEYA NOBORU ,  JIBIKI HIROSHI ,  MATSUO FUMIO

    IPC: C07D239/553 ,  A01N43/54 ,  C07D239/54

    Abstract: NEW MATERIAL:The 5-haloorotic acid compound of formulaI[R is 1-4C alkyl, allyl, cyclohexyl, benzyl, or group of formula II (R is 1-4C alkyl, 1-4C alkoxy, or halogen; n is 0, 1, 2, or 3); X is Cl, Br or I]. EXAMPLE:5-Chloro-1-isopropylorotic acid. USE:Pharmaceuticals, pesticides (agricultural and horticultural fungicide) and their intermediates. PROCESS:The compound of formulaIcan be prepared by reacing 5-carboxyorotic acid alkali metal salt of formula III (Me is alkali metal) with a halogenating agent.

    PREPARATION OF AMINO ACID ESTER
    29.
    发明专利
    PREPARATION OF AMINO ACID ESTER 失效

    公开(公告)号：JPS5671049A

    公开(公告)日：1981-06-13

    申请号：JP14777779

    申请日：1979-11-16

    Applicant: UBE INDUSTRIES

    Inventor： FUKUI KIYOSHI ,  KAKEYA NOBORU ,  FUJIMURA SUSUMU ,  KITA JIYUNICHIROU ,  OKIMOTO KIYOMI ,  SUGIHARA HIROSHI

    IPC: C07B61/00

    Abstract: PURPOSE:To obtain the titled compound useful as an intermediate for an additive of a medicine, agricultural chemical and high polymer in high yield, by reacting a cyanoformate with an active bromomethylene compound in the presence of a low-valent metal halide, and treating the reaction product with water, etc. CONSTITUTION:A cyanoformate of formula I (R is 1-4C alkyl), e.g. methyl cyanoformate or butyl cyanoformate, is reacted with an active methylene compound, e.g. methyl bromocyanoacetate or propyl bromocyanoacetate, of formula II (R is 1-4C alkyl; Y is group of CN, etc.) in the presence of a metal halide of the formula MXn (M is tinhe or titanium; X is Cl or Br; n is 2 when M is tin, and 3 when M is titanium), and the reaction product is then treated with water or an acidic aqueous solution to give the titled compound of formula III without using a base.

    METHOD FOR PRODUCING ALIPHATIC DICARBOXYLIC ACID
    30.
    发明专利
    METHOD FOR PRODUCING ALIPHATIC DICARBOXYLIC ACID 审中-公开

    公开(公告)号：JP2004010520A

    公开(公告)日：2004-01-15

    申请号：JP2002164278

    申请日：2002-06-05

    Applicant: UBE INDUSTRIES

    Inventor： ATAKA KIKUO ,  KAKEYA NOBORU ,  FUJIMURA HITOSHI ,  YAMAMOTO YOSHIFUMI ,  TANAKA MITSUHIRO ,  FUKUDA YUKIMASA

    IPC: C07C51/245 ,  C07B61/00 ,  C07C55/14 ,  C07C55/21

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an aliphatic dicarboxylic acid by oxidizing corresponding cycloalkanone compounds with molecular oxygen in a liquid phase, by which the aliphatic dicarboxylic acid is produced in a high yield in safer handling. SOLUTION: The cycloalkanone compounds are oxidized with molecular oxygen in the presence of a cerium compound and a cobalt compound as catalysts in a liquid phase. Preferably the cycloalkanone compounds are cyclohexanone and cyclododecanone and in the catalytic system, at least one compound of each catalytic component selected from the cerium compound and the cobalt compound is a nitrate. COPYRIGHT: (C)2004,JPO

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