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    CATALYST FOR DEHYDROGENATION AND SILYLATION
    13.
    发明专利
    CATALYST FOR DEHYDROGENATION AND SILYLATION 失效

    公开(公告)号：JPH05228372A

    公开(公告)日：1993-09-07

    申请号：JP6975392

    申请日：1992-02-19

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA

    IPC: B01J31/20 ,  B01J31/24 ,  C07F7/10 ,  C07F7/18

    Abstract: PURPOSE:To provide the subject catalyst for the alcohols, phenols, amines, amides and carboxylic acids. CONSTITUTION:The objective catalyst for the alcohols, phenols, amines, amides and carboxylic acids consists of a complex shown by the general formula, A (HM2(CO)10) , (A is alkali metal cation, ammonium cation, iminium cation or phosphonium cation, and M is chromium atom, molybdenum atom or tungsten atom). Accordingly, a protective group is introduced in the presence of the catalyst in the org. synthesis reaction by using hydrosilanes.

    CATALYST FOR DEHYDROGENATION-SILYLATION OF KETONS AND PRODUCTION OF SILYLENOL ETHERS
    16.
    发明专利
    CATALYST FOR DEHYDROGENATION-SILYLATION OF KETONS AND PRODUCTION OF SILYLENOL ETHERS 失效

    公开(公告)号：JPH0490856A

    公开(公告)日：1992-03-24

    申请号：JP20687990

    申请日：1990-08-06

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  TANAKA YASUTAKA ,  UBUKATA YUMIKO

    IPC: B01J31/20 ,  C07B61/00 ,  C07F7/18

    Abstract: PURPOSE:To make a catalyst as an economical industrial catalyst and manufacture silylenol ethers industrially at high selectivity by using a complex with a specified composition as a catalyst for dehydrogenation-silylation of ketons. CONSTITUTION:A complex expressed as A [M2H(CO)10] (A stands for alkali metal cation, ammonium cation, etc., M stands for chromium atom, molybdenum atom, etc.) is used as a catalyst for dehydrogenation-silylation reaction of ketons, especially for manufacture of silylenol ethers from ketons. This catalyst is an economical industrial catalyst since no expensive group VIII metal complex is used. Moreover, with the catalyst, silylenol ethers are manufactured industrially at high selectivity.

    FLUORINE-CONTAINING ALPHA,OMEGA-BIFUNCTIONAL COMPOUND
    17.
    发明专利
    FLUORINE-CONTAINING ALPHA,OMEGA-BIFUNCTIONAL COMPOUND 失效

    公开(公告)号：JPH02289535A

    公开(公告)日：1990-11-29

    申请号：JP11208189

    申请日：1989-05-02

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  URATA HISAO

    IPC: B01J27/128 ,  B01J31/20 ,  B01J31/22 ,  B01J31/24 ,  C07B61/00 ,  C07C19/08 ,  C07C51/10 ,  C07C51/60 ,  C07C55/32 ,  C07C55/40 ,  C07C57/76 ,  C07C247/22 ,  C07C265/04 ,  C08G63/682 ,  C08G69/42

    Abstract: NEW MATERIAL:A compound of formula I [R and R are H, alkyl or aralkyl; n is a natural number; X is -COY (Y is halogen or N3) or -NCO]. EXAMPLE:4,4,5,5,6,6,7,7,8,8,9,9-Dodecafluoro-1,12-dodecanedioic acid chloride. USE:A raw material for fluorine-containing polymers. The compound is employed for the preparation of polyesters, polyamides, etc., having excellent chemical resistance and durability and containing fluorine atoms in the main chain thereof and also employed for the preparation of fluorine-containing polyurethanes useful for antithrombogenic materials. PREPARATION:An alpha,omega-diiodopolyfluoroalkane of formula II is reacted with an olefin of formula V or VI in the presence of a VIII group transition metal catalyst to prepare a compound of formula III, which is reacted with water, CO and a base in the presence of a VIII group transition metal catalyst to prepare a compound of formula IV. The compound of formula IV is reacted with a halogenating agent to provide the compound of formula I wherein X is COX and Y is halogen.

    FLUORINE-CONTAINING ALPHA,OMEGA-DICARBOXYLIC ACID AND PREPARATION THEREOF
    18.
    发明专利
    FLUORINE-CONTAINING ALPHA,OMEGA-DICARBOXYLIC ACID AND PREPARATION THEREOF 失效

    公开(公告)号：JPH02289534A

    公开(公告)日：1990-11-29

    申请号：JP11208289

    申请日：1989-05-02

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  URATA HISAO

    IPC: B01J27/128 ,  B01J31/20 ,  B01J31/22 ,  B01J31/24 ,  C07B61/00 ,  C07C19/08 ,  C07C51/10 ,  C07C51/60 ,  C07C55/32 ,  C07C55/40 ,  C07C57/76 ,  C07C247/22 ,  C07C265/04 ,  C08G63/682 ,  C08G69/42

    Abstract: NEW MATERIAL:A compound of formula I (R and R are H, alkyl or aralkyl; n is an integer of >=4). EXAMPLE:4,4,5,5,6,6,7,7,8,8,9,9-Dodecafluoro-1,12-dodecanedioic acid. USE:A raw material for fluorine-containing polymers. The compound of formula I is useful for preparing polyesters, polyamides, etc., having excellent water- repellent and oil-repellent properties and chemical resistance and containing fluorine atoms in the main chain thereof, and the compound of formula I is readily converted not only into a fluorine-containing alpha,omega-diisocyanate capable of being utilized as a raw material for antithrombogenic agents but also into an amide on a reaction with an amine. PREPARATION:A fluorine-containing alpha,omega-diiodoalkane of formula II is reacted with CO and water in the presence of a VIII group transition metal catalyst to provide the compound of formula I. When the R and R of the compound of formula II are the same, the compound of formula I is simply, safely and advantageously prepared by the reaction of an alpha,omega-diiodopolyfluoroalkane with an olefin of formula IV.

    PRODUCTION OF OMEGA-HYDROXYFATTY ACID ESTER
    19.
    发明专利
    PRODUCTION OF OMEGA-HYDROXYFATTY ACID ESTER 失效

    公开(公告)号：JPH01258646A

    公开(公告)日：1989-10-16

    申请号：JP8416488

    申请日：1988-04-07

    Applicant: SAGAMI CHEM RES ,  NIPPON MINING CO

    Inventor： FUCHIGAMI TAKAMASA ,  FUJIMOTO TAMOTSU ,  EJIRI EMIKO

    IPC: B01J25/00 ,  B01J23/74 ,  B01J23/75 ,  B01J27/128 ,  B01J27/232 ,  B01J27/25 ,  B01J31/20 ,  C07B61/00 ,  C07C67/30 ,  C07C67/31 ,  C07C69/675

    Abstract: PURPOSE:To produce an intermediate for cyclolactone useful as a raw material for pharmaceuticals or perfumery, etc., in high selectivity and yield at a low cost, by reducing a diacid monoester which is available at a relatively low cost with hydrogen in the presence of a cobalt catalyst. CONSTITUTION:The objective omega-hydroxyfatty acid ester (e.g. 15- hydroxypentadecanoic acid methyl ester) can be produced by reducing a diacid monoester of formula I (R is alkyl n is natural number) (e.g., tridecane-1,13- dicarboxylic acid monomethyl ester) with hydrogen in the presence of a cobalt catalyst such as cobalt chloride, reduced cobalt or cobalt octacarbonyl under a hydrogen pressure of preferably 1-200atm at 20-250 deg.C. The diacid monoester of formula I can be easily produced by esterifying an alkanoic diacid with an alcohol, converting to a barium monosalt with barium hydroxide, etc., and substituting the barium salt with an acid.

    PRODUCTION OF MACROCYCLIC LACTONE
    20.
    发明专利
    PRODUCTION OF MACROCYCLIC LACTONE 失效

    公开(公告)号：JPS6461476A

    公开(公告)日：1989-03-08

    申请号：JP21537687

    申请日：1987-08-31

    Applicant: SAGAMI CHEM RES ,  NIPPON MINING CO

    Inventor： MATSUMOTO MASAKATSU ,  FUCHIGAMI TAKAMASA ,  FUJIMOTO TAMOTSU ,  EJIRI EMIKO

    IPC: C07D313/00

    Abstract: PURPOSE:To readily and advantageously obtain the titled compound useful as an intermediate for producing higher perfume ingredient or medicine in high yield, by cyclizing omega-hydroxy fatty acid ester used as a starting substance in the presence of an acid. CONSTITUTION:The aimed compound such as 1,15-pentadecanolide is obtained by cyclizing omega-hydroxy fatty acid ester expressed by the formula (R is lower alkyl; n is 8-17) such as 15-hydroxypentadecanoic acid methyl ester, readily obtained at a low cost by converting a long-chain diacid monoester into an acid halide and then catalytically reducing the acid halide, preferably in a solvent such as p-xylene or toluene in the presence of catalytic amount of acid - excess acid, e.g. organic sulfonic acid such as p-toluene sulfonic acid or methane sulfonic acid at 50-200 deg.C, preferably 100-170 deg.C.

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