中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

20 records (took 0.023 seconds)

    PRODUCTION OF ALKYNYLSILANES
    1.
    发明专利
    PRODUCTION OF ALKYNYLSILANES 失效

    公开(公告)号：JPH09194484A

    公开(公告)日：1997-07-29

    申请号：JP534896

    申请日：1996-01-17

    Applicant: SAGAMI CHEM RES

    Inventor： KONDO SEI ,  SUGITA HIKARI ,  HIYAMA TAMEJIROU ,  HATANAKA YASUO

    IPC: B01J27/138 ,  C07B61/00 ,  C07F7/08 ,  C07F7/14

    Abstract: PROBLEM TO BE SOLVED: To efficiently produce alkynylsilanes useful as an organic synthetic reactant, etc., such as a protecting group or an alkynylating agent by reacting a specific halosilane with a 1-alkyne in the coexistence of metallic samarium and a zinc salt. SOLUTION: A halosilane represented by formula I [R is H, an alkyl, an aryl, an alkenyl or an alkynyl having no acetylenic hydrogen; X is a halogen; (n) is an integer of 0-3] (e.g. chlorotrimethylsilane) is reacted with a 1-alkyne represented by formula II (R is an alkyl, a cycloalkyl, an aryl, an alkenyl, an alkynyl having no acetylenic hydrogen, an alkoxy, silyl or an acyl) (e.g. phenylethynye) in the coexistence of metallic samarium and a zinc salt to thereby efficiently afford the objective alkynylsilane represented by formula III and useful as an organic synthetic reactant, etc., such as a protecting group or an alkynylating agent [e.g. trimethyl(phenylethynyl)silane].

    PRODUCTION OF UNSATURATED COMPOUND
    2.
    发明专利
    PRODUCTION OF UNSATURATED COMPOUND 失效

    公开(公告)号：JPH02235825A

    公开(公告)日：1990-09-18

    申请号：JP5611389

    申请日：1989-03-10

    Applicant: SAGAMI CHEM RES

    Inventor： HIYAMA TAMEJIROU ,  HATANAKA YASUO

    IPC: B01J31/24 ,  C07B37/04 ,  C07B61/00 ,  C07C1/32 ,  C07C13/20 ,  C07C13/28 ,  C07C41/30 ,  C07C43/15 ,  C07C45/70 ,  C07C49/784 ,  C07C49/794 ,  C07C67/343 ,  C07C69/533 ,  C07C253/30 ,  C07C255/07

    Abstract: PURPOSE:To obtain the title substance useful as a raw material for medicine, synthetic high polymer, etc., by reacting a halogenated organosilicon compound with a vinyloxy compound in the presence of a catalyst of the group VIII metal and fluoride ion. CONSTITUTION:A compound expressed by formula I (R is alkyl, alkenyl, aryl, alkynyl, etc.; R to R are halogen, alkyl, aryl, alkenyl, alkynyl, etc.) is reacted with a compound expressed by formula II (R to R are alkoxycarbonyl, alkoxy, CN, acyl, H, alkyl, etc.; R is acyl, sulfonyl, etc.) in the presence of a catalyst of the group VIII metal [e.g., tetrakis(triphenylphosphine)palladium] and fluoride ion (e.g. tetrabutylammonium fluoride), preferably in an aprotic polar solvent such as DMF at ambient temperature to 80 deg.C to provide the compound expressed by formula III.

    PRODUCTION OF ALPHA,OMEGA-DIHYDROPOLYSILANE
    3.
    发明专利
    PRODUCTION OF ALPHA,OMEGA-DIHYDROPOLYSILANE 失效

    公开(公告)号：JPH05230219A

    公开(公告)日：1993-09-07

    申请号：JP6974992

    申请日：1992-02-19

    Applicant: SAGAMI CHEM RES

    Inventor： HIYAMA TAMEJIROU ,  HATANAKA YASUO

    IPC: C08G77/60 ,  C08G77/48

    Abstract: PURPOSE:To obtain the title polysilane useful as a functional polymer such as a nonlinear optical material by polymerizing a specified small-ring polysilane through ring opening in the presence of a polymerization catalyst in a solvent. CONSTITUTION:A small-ring polysilane of formula I (wherein R to R are each H, alkyl, aryl, alkenyl, alkinyl, alkoxy, silyl or halogen, and R and R , R and R , R and R , or R and R together with the corresponding bonded Si atom may be combined with each other to form a ring; and m is 0-1) is polymerized through ring opening in the presence of a polymerization catalyst (e.g. iodotrimethyl-silane) in a solvent (e.g. 1, 2-dichloroethane) to obtain the title polysilane of formula II (wherein n is 2 or greater).

    PRODUCTION OF OLEFINS
    4.
    发明专利
    PRODUCTION OF OLEFINS 失效

    公开(公告)号：JPH04283521A

    公开(公告)日：1992-10-08

    申请号：JP7204791

    申请日：1991-03-13

    Applicant: SAGAMI CHEM RES

    Inventor： HIYAMA TAMEJIROU ,  HATANAKA YASUO ,  WAKASA NORIKO

    IPC: B01J31/24 ,  C07B37/04 ,  C07B61/00 ,  C07C1/32 ,  C07C15/44 ,  C07C17/25 ,  C07C25/24 ,  C07C41/30 ,  C07C43/243 ,  C07C45/68 ,  C07C49/794 ,  C07C209/74 ,  C07C211/45 ,  C07C253/30 ,  C07C255/50

    Abstract: PURPOSE:To produce in high selectivity the subject olefins useful as an intermedi ate for synthesis of an anti-inflammatory drug, terpenes, etc., by reacting an organosilicon compound with an unsaturated compound in the presence of a 10th shell transition metal catalyst and a nucleophilic reagent. CONSTITUTION:In the presence of a 10th shell transition metal catalyst such as a palladium complex or a nickel complex and a nucleophilic reagent (e.g. onium fluoride or amine), a compound of formula I (R -R are H, alkyl, alkenyl, alklynyl, alkoxyl, ailyl or halogen; R is F, Cl, Br or alkoxyl; R are R are R alkyl, aryl, alkenyl or alkylnyl) is reacted with a compound of formula II (R -R are R -R ; Y is group for elimination; n is 0 or 1) preferably in an aprotic solvent at room temeprature -100 deg.C to obtain the objective compound of formula III, e.g. 3-(4--acetyphenyl)-1-butene. The above-mentioned reaction can be carried out without requirement of protection of functional groups.

    METHYLATING AGENT FOR HALOOLEFIN
    6.
    发明专利
    METHYLATING AGENT FOR HALOOLEFIN 失效

    公开(公告)号：JPS63284187A

    公开(公告)日：1988-11-21

    申请号：JP11674487

    申请日：1987-05-15

    Applicant: SAGAMI CHEM RES

    Inventor： HIYAMA TAMEJIROU ,  HATANAKA YASUO

    IPC: C07D231/14 ,  C07B31/00 ,  C07B37/04 ,  C07C67/00 ,  C07F7/12

    Abstract: PURPOSE:A superior methylating agent for a haloolefin, which is composed of a tris(dialkylamino)sulfoniumdifluorotrimethylsilicate. CONSTITUTION:An aimed methylating agent composed of a tris(dialkylamino) sulfoniumdifluorotrimethylsilicate expressed by formula I (R -R represent alkyl) [e.g. tris(dimethylamino)sulfoniumdifluorotrimethylsilicate]. Haloolefins expressed by formula II (R -R represents H, alkyl, alkenyl, aryl, halogen atom. etc.; X represents Cl, Br or I) are preferred as the haloolefin and, e.g. 1-iodo-1-octene, is cited.

    PRODUCTION OF ALLYLQUINONE
    7.
    发明专利
    PRODUCTION OF ALLYLQUINONE 失效

    公开(公告)号：JPH0892151A

    公开(公告)日：1996-04-09

    申请号：JP23477594

    申请日：1994-09-29

    Applicant: SAGAMI CHEM RES

    Inventor： HATANAKA YASUO ,  EJIRI EMIKO ,  HIYAMA TAMEJIROU

    IPC: C07C46/00 ,  C07C50/06 ,  C07C50/14 ,  C07C50/24 ,  C07C50/28 ,  C07C253/30 ,  C07C255/40

    Abstract: PURPOSE: To regioselectively and efficiently obtain the compound, concerned in electron transport, etc., in living bodies, having diverse physiological activities and useful as medicines, etc., without requiring the protection of carbonyl group by reacting an allyltrifluorosilane with a quinone. CONSTITUTION: This method for producing an allylquinone of formula III (R to R are each H, an alkyl, an aryl, an alkenyl, an alkoxy, cyano or a halogen; R and R , R and R , R and R or R and R , together with C to which they are respectively bound, may form a ring; R to R are each H, an alkyl, an aryl, an alkenyl, an alkynyl, an alkoxy, OH or R and R , together with C to which they are respectively bound, may form a ring) [e.g. 2-(3-methyl-2- butenyl)-1,4-benzoquinone] is to react an allyltrifluorosilane of formula I [e.g. (E)-2-butenyltrifluorosilane] with a p-quinone of formula II (X is H or a halogen) (e.g. 1,4-benzoquinone), preferably in the coexistence of an oxidizing agent.

    PRODUCTION OF OLEFINS
    8.
    发明专利
    PRODUCTION OF OLEFINS 失效

    公开(公告)号：JPH07252171A

    公开(公告)日：1995-10-03

    申请号：JP6651894

    申请日：1994-03-11

    Applicant: SAGAMI CHEM RES

    Inventor： HATANAKA YASUO ,  AIDA KENICHI ,  HIYAMA TAMEJIROU

    IPC: C07D307/36 ,  C07B37/04 ,  C07B61/00 ,  C07C1/32 ,  C07C15/44 ,  C07C17/263 ,  C07C22/04 ,  C07C43/166 ,  C07C43/176 ,  C07C43/20 ,  C07C45/68 ,  C07C49/794 ,  C07C255/06 ,  C07C255/50

    Abstract: PURPOSE:To site-selectively produce an arylbutene useful as perfumery and a terpene having physiological activity by contacting a specific organic silicon compound with a fluoride salt and reacting with an aromatic compound in the presence of a specific metal catalyst. CONSTITUTION:This olefin of formula II can be produced by contacting an organic silicon compound of formula I (R to R each is H, an alkyl, an aryl, cyano, amino, etc.; R is F, Cl, Br or an alkoxy; R and R each us an alkyl, an aryl, an alkenyl, etc.; R and R , R and R , R and R or R and R'' each may together with bonding C form a ring) [e.g. (E)-2-butenyltrifluorosilane] with a fluoride salt [e.g. tris(diethylamino)sulfonium difluorotrimethylsilicate] and reacting the product with an aromatic compound of formula, Ar-Y (Y is an eliminable group; Ar is an aromatic group, etc.) (e.g. 4-iodoacetophenone) in the presence of a group 10 transition metal catalyst {e.g. palladium chloride [1,3-bis (diphenylphosphino)propane]}.

    PRODUCTION OF CONJUGATED OLEFIN
    10.
    发明专利
    PRODUCTION OF CONJUGATED OLEFIN 失效

    公开(公告)号：JPH01226831A

    公开(公告)日：1989-09-11

    申请号：JP5258888

    申请日：1988-03-08

    Applicant: SAGAMI CHEM RES

    Inventor： HIYAMA TAMEJIROU ,  HATANAKA YASUO

    IPC: C07B61/00 ,  B01J31/22 ,  C07C1/00 ,  C07C1/32 ,  C07C11/12 ,  C07C13/19 ,  C07C15/42 ,  C07C15/58 ,  C07C67/00 ,  C07F7/08

    Abstract: PURPOSE:To obtain conjugated olefin which is used as a key compound for synthesis of medicines and naturally occurring compounds, by reaction of an organic halogenated silicon with an unsaturated halogen in the presence of a catalyst of a metal of group 8 in the periodic table and fluoride ion. CONSTITUTION:The reaction of a compound of formula I [R is group of formula II or R -CidenticalC- (R -R are alkyl, aryl, alkenyl, alkynyl, H); R is F, Cl, Br; R , R are alkyl, aryl, alkenyl, alkynyl, F, Cl, Br or equal to R ] with a compound of formula III (R -R are alkyl, aryl, alkenyl, alkynyl, H) is carried out in an aprotic polar solvent such as DMF in the presence of a catalyst of a metal of group VIII in the periodic table (such as palladium tetrakis(triphenylphosphine)] and a fluoride ion source (such as KF) at room temperature to 80 deg.C to give a compound of formula IV.

Patent Agency Ranking