Process for preparing organic silane compounds having beta-cyano ester group
    1.
    发明授权
    Process for preparing organic silane compounds having beta-cyano ester group 有权
    制备具有β-氰基酯基的有机硅烷化合物的方法

    公开(公告)号:US08461368B2

    公开(公告)日:2013-06-11

    申请号:US12312920

    申请日:2007-12-03

    IPC分类号: C07C7/02

    CPC分类号: C07F7/1876

    摘要: The present invention relates to a process for preparing organic silane compounds having a β-cyano ester group. In particular, the present invention relates to a process for preparing organic silane compounds having a β-cyano ester group, in which β-cyano β-cyano containing compounds having an unsaturated group are hydrosilylated using a hydro alkoxy silane in the presence of a platinum-vinyl siloxane catalyst. The preparation process according to the present invention can stably initiate and progress the reaction, minimize the generation of by-products, and prepare organic silane compounds having a β-cyano ester structure with high yield.

    摘要翻译: 本发明涉及一种制备具有β-氰基酯基的有机硅烷化合物的方法。 特别地,本发明涉及一种制备具有β-氰基酯基的有机硅烷化合物的方法,其中具有不饱和基团的含β-氰基的含氰基的氰基化合物在氢气存在下使用氢烷氧基硅烷进行氢化硅烷化 乙烯基硅氧烷催化剂。 根据本发明的制备方法可以稳定地引发和进行反应,使副产物的产生最小化,并以高产率制备具有β-氰基酯结构的有机硅烷化合物。

    Process for the separation of styrene from ethylbenzene
    3.
    发明授权
    Process for the separation of styrene from ethylbenzene 失效
    苯乙烯分离苯乙烯的方法

    公开(公告)号:US3784620A

    公开(公告)日:1974-01-08

    申请号:US3784620D

    申请日:1972-12-14

    申请人: MONSANTO CO

    发明人: PERRY E STRAZIK W

    摘要: WHEREIN R AND R'' ARE AROMATIC OR ALIPHATIC. EXEMPLARY OF THE POLYAMIDES ARE NYLON-6 AND NYLON 6, 10.

    -(NH-R-NH-CO-R-CO)A- AND -(NH-R-CO)A-

    STYRENE IS SEPARATED FROM ORGANIC MIXTURE COMPRISING STYRENE AND ETHYLBENZENE BY CONTACTING THE SAID MIXTURE UNDER PERVAPORATION PERMEATION CONDITIONS AGAINST ONE SIDE OF A POLYAMIDE PERMEATION MEMBRANE AND WITHDRAWING ON THE OTHER SIDE OF THE MEMBRANE A VAPOROUS MIXTURE HAVING AN INCREASED CONCENTRATION OF STYRENE. THE POLYAMIDES HAVE UNITS SELECTED FROM THE GROUP CONSISTING OF

    Process for the separation of diene from organic mixtures

    公开(公告)号:US3773848A

    公开(公告)日:1973-11-20

    申请号:US3773848D

    申请日:1971-12-16

    申请人: MONSANTO CO

    发明人: PERRY E STRAZIK W

    摘要: DIENES SUCH AS BUTADIENE AND ISOPRENE ARE SEPARATED FROM ORGANIC MIXTURES CONTAINING SAME BY CONTACTING THE MIXTURE AGAINST ONE SIDE OF A POLYMERIC MEMBRANE AND WITHDRAWING AT THE OTHER SIDE A VAPOROUS MIXTURE HAVING INCREASED DIENE CONCENTRATION. THE POLYMER MEMBRANE IS AN ACRYLONITRILE CONTAINING POLYMER WHICH IS (1) A COPOLYMER OF ACRYLONITRILE OR (2) A POLYMER BLEND CONTAINING ACRYLONITRILE POLYMER. EXEMPLARY OF THE POLYMER MEMBRANES ARE COPOLYMERS OF ACRYLONITRILE AND A STYRENE, VINYL ACETATE AND N-VINYLPYRROLIDONE AND BLENDS OF POLYACRYLONITRILE AND POLYSTYRENE, POLYVINYL ACETATE AND POLYVINYLPYRROLIDONE. EXEMPLARY OF THE ORGANIC MIXTURES IS A MIXTURE OF BUTADIENE AND BUTENE.

    Purification of acetylenically unsaturated hydrocarbons
    6.
    发明授权
    Purification of acetylenically unsaturated hydrocarbons 失效
    乙烯不饱和烃的纯化

    公开(公告)号:US3720727A

    公开(公告)日:1973-03-13

    申请号:US3720727D

    申请日:1971-12-22

    发明人: DANIELS C WATSON J

    CPC分类号: C07C7/14825 C07C15/48

    摘要: A process for the separation of acetylenically unsaturated aromatic hydrocarbons from mixtures containing such hydrocarbons in admixture with vinyl substituted aromatic hydrocarbons, said process comprising contacting said mixture with a halogen selected from the group consisting of bromine, chlorine and mixtures thereof, under halogenation conditions, said halogen being present in an amount such as to halogenate the vinyl substituents of said vinyl substituted aromatic hydrocarbons, and thereafter separating and recovering said acetylenically unsaturated aromatic hydrocarbons.

    摘要翻译: 一种从乙烯基取代芳烃混合物中混合含有烯属不饱和芳烃的方法,所述方法包括在卤化条件下使所述混合物与选自溴,氯及其混合物的卤素接触,所述方法包括: 卤素以使所述乙烯基取代的芳族烃的乙烯基取代基卤化,然后分离和回收所述炔属不饱和芳族烃的量存在。

    Separation of aromatics
    7.
    发明授权
    Separation of aromatics 失效
    芳香分离

    公开(公告)号:US3707577A

    公开(公告)日:1972-12-26

    申请号:US3707577D

    申请日:1971-03-08

    发明人: STENMARK DONALD G

    IPC分类号: C07C7/152 C07C7/02 C07C7/10

    摘要: A SELECTED AROMATIC HYDROCARBON IS SEPARATED FROM ITS MIXTURE WITH OTHER AROMATIC HYDROCARBONS BY FORMING A LITHIUM-ALUMINUM CHLORIDE COMPLEX WITH AN UNSATURATED COMPOUND WHICH IS USED TO EXTRACT A MIXTURE OF AROMATIC HYDROCARBONS TO FORM A RAFFINATE PHASE AND AN EXTRACT COMPLEX PHASE; THE PHASES ARE SEPARATED AND THE EXTRACT COMPLEX PHASE IS WASHED WITH A PORTION OF THE COMPOUND AND THERE IS RECOVERED FROM THE WASHED EXTRACT COMPLEX PHASE A SECOND EXTRACT PHASE LEAN IN SAID COMPOUND AND A SECOND RAFFINATE PHASE COMPRISING SAID COMPOUND AND A SELECTEDAROMATIC HYDROCARBON WHICH IS THEN RECOVERED FROM THE SECOND RAFFINATE PHASE.

    Process for the production of chiral unsaturated alcohols in high
optical purity
    10.
    发明授权
    Process for the production of chiral unsaturated alcohols in high optical purity 失效
    用于生产高光学纯度的手性不饱和醇的方法

    公开(公告)号:US5886214A

    公开(公告)日:1999-03-23

    申请号:US839477

    申请日:1997-04-14

    申请人: Neil Warren Boaz

    发明人: Neil Warren Boaz

    CPC分类号: C07C67/283

    摘要: The catalytic asymmetric hydrogenation of enol esters with a vinyllic or acetylenic substituent proceeds with extremely high enantioselectivity using a Rhodium-chiral bisphosphine catalyst. This is at variance with the hydrogenation of enol esters bearing a saturated substituent, which are hydrogenated with only marginal enantioselectivity under the same conditions.

    摘要翻译: 烯醇酯与乙烯基或炔属取代基的催化不对称氢化使用铑手性双膦催化剂进行极高的对映选择性。 这与具有饱和取代基的烯醇酯的氢化不同,在相同条件下氢化仅具有边际对映选择性。