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    CATALYST FOR COPOLYMERIZATION OF CYCLOOLEFIN WITH ACETYLENE
    41.
    发明专利
    CATALYST FOR COPOLYMERIZATION OF CYCLOOLEFIN WITH ACETYLENE 失效

    公开(公告)号：JPH08295725A

    公开(公告)日：1996-11-12

    申请号：JP10286995

    申请日：1995-04-27

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  YAMAMOTO TOSHINORI ,  SAITO YASUKO ,  NAGASE YUTAKA

    IPC: C08G61/02 ,  C08G61/00

    Abstract: PURPOSE: To provide a catalyst used in the production of a cycloolefin/acetylene copolymer useful as a material for a gas separation membrane such as an oxygen enriching membrane by using a specified tungsten complex as an effective component. CONSTITUTION: This catalyst used for the copolymerization of a cycloolefin with an acetylene comprises a tungsten complex represented by the formula (wherein A is an alkali metal cation, an ammonium cation or a phosphonium cation) or a combination thereof with a hydrosilane. This catalyst is stable, highly active and easily handleable. By using this catalyst, a copolymer having a composition corresponding to the composition ratio between the charged comonomers can be synthesized even in the copolymerization of a cycloolefin with an acetylene by which the production of a copolymer of a controlled compositionn is conventionally impossible, and a polymer of an acetylene can be used in the copolymerization. The synthesized cycloolefin/acetylene copolymer has excellent properties as a material for a gas separation membrane such as an oxygen enriching membrane.

    FLUOROCOPOLYMER AND ITS PRODUCTION
    42.
    发明专利
    FLUOROCOPOLYMER AND ITS PRODUCTION 失效

    公开(公告)号：JPH07247343A

    公开(公告)日：1995-09-26

    申请号：JP6651794

    申请日：1994-03-11

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  SATO RIE ,  WAKASA NORIKO ,  NAGASE YUTAKA

    IPC: C08G61/00

    Abstract: PURPOSE:To produce a fluorocopolymer useful as a water-repellent polymer or a main chain type high-molecular liquid crystal polymer by reacting a specified fluoroalkyl halide with an organic halide and metallic magnesium in the presence of a metal catalyst. CONSTITUTION:A fluoroalkyl halide of formula I (wherein X is I or Br; R is H, alkyl, alkenyl, alkynyl, an aromatic group, provided that two Rs may be suitably combined with each other to form a ring together with the carbon atoms to which they are bonded; and n is 1-20) is reacted with an organic halide of formula II (wherein Y is I, Br or Cl; and R' is an aromatic group of an atomic group composed of a plurality of aromatic groups bonded with each other directly or through bonding groups) and metallic magnesium to obtain a fluorocopolymer comprising repeating units of formula III (wherein R and n are each as defined above). This copolymer shows excellent water repellency and has liquid crystal properties over a wide range of temperature.

    PRODUCTION OF FLUOROCARBONYL COMPOUND
    43.
    发明专利
    PRODUCTION OF FLUOROCARBONYL COMPOUND 失效

    公开(公告)号：JPH0789892A

    公开(公告)日：1995-04-04

    申请号：JP25471893

    申请日：1993-09-17

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  SATO RIE

    IPC: B01J31/24 ,  C07B61/00 ,  C07C45/49 ,  C07C49/227 ,  C07C49/235

    Abstract: PURPOSE:To easily obtain the subject compound important as a raw material for medicines, agrochemicals, functional materials etc. CONSTITUTION:The objective fluorocarbonyl compound of formula Y-CF2-CR2- CR2-C(=O)-R' Of R'-C(=O)-CR2-CR2-(CF2)n-CR2-CR2-C(=O)-R' (R' is alkenyl, alkynyl, aralkyl or aromatic group; R'' is alkyl; Y is H, halogen or polyfluoroalkyl; X is halogen; R is H, alkyl, alkenyl, alkynyl or aromatic group; n is an integer of 1-20) can be obtained by reaction between (A) an organotin compound of formula R'SnR''3 and (B) a halide of formula Y-CF2-CR2-CR2-X or X-CR2-CR2-(CF2)n-CR2-CR2-X in the presence of carbon monoxide using a transition metal catalyst.

    PRODUCTION OF ALCOHOL DERIVATIVE HAVING DIFLUOROMETHYL GROUP AT ALPHA-SITE
    48.
    发明专利
    PRODUCTION OF ALCOHOL DERIVATIVE HAVING DIFLUOROMETHYL GROUP AT ALPHA-SITE 失效

    公开(公告)号：JPH0640974A

    公开(公告)日：1994-02-15

    申请号：JP21956792

    申请日：1992-07-28

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  HAGIWARA TOSHINORI

    IPC: B01J31/02 ,  C07C31/38 ,  C07C31/44 ,  C07C33/42 ,  C07C33/44 ,  C07C33/46 ,  C07C41/26 ,  C07C43/225 ,  C07F7/18

    Abstract: PURPOSE:To provide a process for producing an alcohol derivative having difluoromethyl group at alpha-site and important as a raw material for pharmaceuticals, agricultural chemicals, functional materials, etc. CONSTITUTION:The alcohol derivative having difluoromethyl group at alpha-site and expressed by the general formula R R C(OSiR R R )-CF2H or R R C(OH)-CF2 H [R and R are independently H or (substituted) alkyl, aromatic group, aralkyl, alkenyl or alkynyl; R and R may together form a ring; R , R and R are independently alkyl or aromatic group) is produced by reacting a carbonyl compound expressed by the general formula R R C=O with a difluoromethylsilane expressed by the general formula R R R Si-CF2H in the presence of an alkoxide ion source.

    PRODUCTION OF ALCOHOL DERIVATIVE HAVING DIFLUOROMETHYL GROUP AT ALPHA-POSITION
    49.
    发明专利
    PRODUCTION OF ALCOHOL DERIVATIVE HAVING DIFLUOROMETHYL GROUP AT ALPHA-POSITION 失效

    公开(公告)号：JPH05230075A

    公开(公告)日：1993-09-07

    申请号：JP6975492

    申请日：1992-02-19

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  HAGIWARA TOSHINORI

    IPC: C07F7/18 ,  C07C29/38 ,  C07C33/18

    Abstract: PURPOSE:To produce an alcohol derivative important as a raw material for medicines, agricultural agent, functional material, etc., and having a difluoromethyl group at a position. CONSTITUTION:The objective alcohol derivative expressed by the formula R R C (OSiR R R )-CF2H or the formula R R C(OH)-CF2H (R and R are each independently hydrogen atom or alkyl group, aromatic group, aralkyl group, alkenyl group or alkynyl group which may have substituent or R and R together may form a ring; R , R and R are each independently alkyl group or aromatic group) and having a difluoromethyl group at alpha position is produced by reacting a carbonyl compound expressed by the formula R R C=O with a difluoromethylsilanes of the formula R R R Si-CF2H in the presence of a fluoride ion source. Thereby, the alcohol derivative having difluoromethyl group at alpha-position can simply be synthesized.

    PRODUCTION OF PERFLUOROALKYL GROUP-CONTAINING COMPOUND
    50.
    发明专利
    PRODUCTION OF PERFLUOROALKYL GROUP-CONTAINING COMPOUND 失效

    公开(公告)号：JPH03218325A

    公开(公告)日：1991-09-25

    申请号：JP5988590

    申请日：1990-03-13

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  URATA HISAO

    IPC: B01J27/122 ,  C07B37/04 ,  C07B61/00 ,  C07C17/26 ,  C07C17/263 ,  C07C21/18 ,  C07C22/08 ,  C07C41/22 ,  C07C43/225 ,  C07C67/343 ,  C07C69/76 ,  C07C201/12 ,  C07C205/11

    Abstract: PURPOSE:To obtain the title substance useful as a synthetic intermediate for drugs, agricultural chemicals, water repellent, oil repellent, etc., from reagents having low toxicity under a mild condition by reacting a halogen compound with a perfluoroalkylsilane in the presence of a copper salt and a fluoride ion source. CONSTITUTION:A compound shown by formula I (R is aromatic group, aralkyl or alkenyl group which may contain substituent group; X is I or Br) subjected to a reaction with a compound shown by formula II ((n) is 1-10; R to R are alkyl) in the presence of a copper salt and a fluoride ion source at 50-90 deg.C to give a compound shown by formula III. Cuprous iodide, cuprous bromide, cuprous chloride or cuprous cyanide may be cited as the copper salt and LiF, NaF, KF, CsF or tetrabutylammonium fluoride as the fluoride ion source. The amounts of the copper salt and the fluoride ion source are preferably 1 equivalent or excessive amount, respectively. The reaction is preferably carried out in an aprotic polar solvent such as THF or DMF.

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