SELECTIVE HYDROGENATION OF OLEFINICALLY UNSATURATED CARBONYL COMPOUND

    公开(公告)号:JP2003206248A

    公开(公告)日:2003-07-22

    申请号:JP2002353047

    申请日:2002-12-04

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a continuous method of producing an unsaturated alcohol by selectively hydrogenating an olefinically unsaturated carbonyl compound, particularly citral is selectively hydrogenated to continuously produce a mixture of geraniol and nerol. SOLUTION: An olefinic unsaturated carbonyl compound is selectively hydrogenated in the reactor including the liquid phase that holds at least one kind of catalyst suspension and may include the gas phase additionally to produce unsaturated alcohols. The reactor used in this process has an opening or a flow channel with the hydraulic diameter of 0.5-20 mm. COPYRIGHT: (C)2003,JPO

    Production of n-alkenylcarboxamide
    4.
    发明专利
    Production of n-alkenylcarboxamide 审中-公开
    N-烷基胆酰胺的生产

    公开(公告)号:JPH11279145A

    公开(公告)日:1999-10-12

    申请号:JP738599

    申请日:1999-01-14

    CPC classification number: C07D207/267 B01J29/061

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an N-alkenylcarboxamide, making it possible to achieve a high conversion and a high selectivity and capable of being performed under the atmospheric pressure, and especially to provide a method for synthesizing N-vinylpyrrolidone(NVP) from N-(2-hydroxyethyl) pyrrolidone(HEP).
    SOLUTION: This method for producing an N-alkenylcarboxamide comprises dehydrating an N-(2-hydroxyalkyl)carboxamide and/or its diether in the presence of a catalyst. Therein, a molecular sieve having a modulus of at least 140, especially zeolite, is used as the catalyst.
    COPYRIGHT: (C)1999,JPO

    Abstract translation: 要解决的问题:为了提供N-烯基羧酰胺的制造方法,可以实现高转化率和高选择性,并且能够在大气压下进行,特别是提供一种合成N-乙烯基吡咯烷酮( NVP)来自N-(2-羟乙基)吡咯烷酮(HEP)。 解决方案:该制备N-链烯基羧酰胺的方法包括在催化剂存在下脱水N-(2-羟基烷基)甲酰胺和/或其二醚。 其中,使用模量为至少140的分子筛,特别是沸石,作为催化剂。

    PRODUCTION OF GLYOXAL MONOACETAL
    8.
    发明专利

    公开(公告)号:JPH10182540A

    公开(公告)日:1998-07-07

    申请号:JP33875297

    申请日:1997-12-09

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a new method for industrially advantageously producing a glyoxal monoacetal, enabling to profitably obtain the glyoxal monoacetal by reacting glyoxal and a glyoxal bisacetal with an alcohol under a specific reaction condition. SOLUTION: This method for producing a glyoxal monoacetal of formula I (R , R are each a 1-4C alkyl, a 2-4C alkenyl) comprises reacting the mixture of glyoxal with a glyoxal bisacetal of formula II with an excessive amount of an alcohol of the formula: R OH or R OH or their mixture in the presence of an acidic catalyst until the equilibrium of the reaction is achieved. The acidic catalyst is preferably an acidic ion exchange material, especially preferably the fixed bed of the acidic ion exchange material. The alcohol is preferably methanol. The glyoxal bisacetal, the acidic catalyst and the alcohol are preferably reutilized for the reaction.

    METHOD FOR PRODUCING AMINOALKOXY BENZYLAMINES AND AMINOALKOXY BENZONITRILES AS INTERMEDIATES
    10.
    发明申请
    METHOD FOR PRODUCING AMINOALKOXY BENZYLAMINES AND AMINOALKOXY BENZONITRILES AS INTERMEDIATES 审中-公开
    工艺用于生产和AMINOALKOXYBENZYLAMINEN AMINOALKOXYBENZONITRILEN中间产品

    公开(公告)号:WO2004013082A3

    公开(公告)日:2004-07-15

    申请号:PCT/EP0307871

    申请日:2003-07-18

    CPC classification number: C07C213/02 C07C253/30 C07C217/58 C07C255/54

    Abstract: The invention relates to methods for producing 4-[aminoalkoxy]benzylamines of general formula (I) by means of catalytic hydrogenation of 4-[aminoalkoxy]benzonitriles of general formula (II). In the compounds of general formulae (I) and (II), R represents C1-C8 alkylene, and R and R independently represent C1-C8 alkyl or are linked to form a ring which can also contain a heteroatom. The hydrogenation is carried out at increased pressure and increased temperatures. The invention also relates to a method for producing the intermediate (II).

    Abstract translation: 本发明涉及一种方法,通过4- [氨基烷氧基] -benzonitrilen通式(II),其中所述通式的化合物中的I和II [R <1的催化氢化制备通式(I)的4- [氨基烷氧基]苄 >代表C1-C8亚烷基,R <2>和R <3>独立地是C1-C8烷基或连接形成一个环,该环还可以含有杂原子,其中所述氢化在升高的压力和升高的温度下进行 执行。 此外,本发明涉及一种用于中间体(II)的制备方法。

Patent Agency Ranking