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    NEW FLUORINE-CONTAINING TERTIARY BUTYL ETHER
    8.
    发明专利
    NEW FLUORINE-CONTAINING TERTIARY BUTYL ETHER 失效

    公开(公告)号：JP2000319217A

    公开(公告)日：2000-11-21

    申请号：JP12745499

    申请日：1999-05-07

    Applicant: AGENCY IND SCIENCE TECHN ,  RES INST INNOVATIVE TECH EARTH

    Inventor： SUZUTA TETSUYA ,  KUROKAWA YUJI ,  MURATA JUNJI ,  ABE TAKASHI ,  SEKIYA AKIRA

    IPC: C11D7/28 ,  A01N31/14 ,  C07C43/12 ,  C09K5/04 ,  C11D7/50

    Abstract: PROBLEM TO BE SOLVED: To obtain a new compound which is a fluorine-containing tertiary butyl ether, can be synthesized by a simple process by using readily obtainable raw materials in a high yield, useful as a synthetic intermediate or a raw material for a fluorine-containing product such as a fluorocarbon substitute, a surfactant, an agrochemical, a medicine, etc. SOLUTION: This compound is shown by the formula (CH3)3COCF2CF2R (R is fluorine, chlorine, trifluoromethyl, trifluoromethoxy or methoxy) (e.g. tertiary butoxypentafluoroethane). The compound is obtained by reacting a compound of the formula (CH3)3COF with a fluorine-containing olefin of the formula CF2=CFR (e.g. tetrafluoroethylene) in the molar ratio of 0.1-5 times as much as the compound in a solvent such as acetonitrile or in a solventless state at -80 to 100 deg.C under 0.1-30 atmosphere.

    NEW FLUOROOLEFIN ETHER AND ITS PRODUCTION
    9.
    发明专利
    NEW FLUOROOLEFIN ETHER AND ITS PRODUCTION 失效

    公开(公告)号：JP2000281612A

    公开(公告)日：2000-10-10

    申请号：JP8246299

    申请日：1999-03-25

    Applicant: AGENCY IND SCIENCE TECHN ,  RES INST INNOVATIVE TECH EARTH

    Inventor： SUZUTA TETSUYA ,  KUROKAWA YUJI ,  MURATA JUNJI ,  ABE TAKASHI ,  SEKIYA AKIRA

    IPC: C07C41/06 ,  C07C43/17

    Abstract: PROBLEM TO BE SOLVED: To obtain a new compound useful as a synthetic intermediate, a monomer for producing a fluorine-containing polymer, or the like, especially an alternative fluorocarbon, a surfactant or the like, and capable of being readily produced by using an easily available raw material. SOLUTION: This new compound is the one of the formula. The compound (e.g. a mixture of cis and trans isomers) can be obtained by reacting (A) CH3OF with (B) hexafluoro-1,3-butadiene in a solvent such as acetonitrile, propionitrile, acetone, dichloromethane, chloroform and benzene or without the solvent, at a temperature of (-80)-100 deg.C, especially (-50)-50 deg.C for about 15 hr reaction time while regulating the amounts of the used component A so as to be 0.1-10 mol, especially 0.5-2 mol per mol component B.

    PRODUCTION OF BOTH 2-IODIZED-2,3,3,3-TETRAFLUOROPROPIONIC ACID FLUORIDE AND ITS ESTER
    10.
    发明专利
    PRODUCTION OF BOTH 2-IODIZED-2,3,3,3-TETRAFLUOROPROPIONIC ACID FLUORIDE AND ITS ESTER 失效

    公开(公告)号：JP2000256256A

    公开(公告)日：2000-09-19

    申请号：JP5402499

    申请日：1999-03-02

    Applicant: AGENCY IND SCIENCE TECHN ,  RES INST INNOVATIVE TECH EARTH

    Inventor： ABE TAKASHI ,  OKUHARA KUNIO

    IPC: C07C51/58 ,  C07C53/50 ,  C07C67/14 ,  C07C69/63

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound as a synthetic precursor for trifluoroacrylic acid useful as a monomer for producing a fluororesin having heat resistance and chemical resistance by the synthetic reaction of hexafluoropropene oxide with trimethylsilyl iodide. SOLUTION: The objective compound of the formula CF3CFIC(O)F is obtained by the synthetic reaction of 1 mol hexafluoropropene oxide of the formula with preferably 1 mol trimethylsilyl iodide of the formula (CH3)3SiI preferably at a reaction temperature of 140-150 deg.C. By the esterification reaction of the compound with an alkyl alcohol of the formula R1OH (wherein, R1 is a 1-5C alkyl), a 2-iodized-2,3,3,3-tetrafluoropropionate of the formula CF3CFICOOR1 (wherein, R1 is an alkyl).

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