METODO PARA LA PREPARACION DE AMINAS SECUNDARIAS A PARTIR DE NITRILOS.

    公开(公告)号:ES2284582T3

    公开(公告)日:2007-11-16

    申请号:ES01130515

    申请日:2001-12-21

    Applicant: BASF AG

    Abstract: Método para la preparación de aminas secundarias de la fórmula general (II) (X-CH2-)2NH (II) con el significado siguiente: X es alquilo de C1-20, alquenilo de C2-20 ó cicloalquilo de C3-8 opcionalmente substituidos por alquilo de C1-20, cicloalquilo de C3-8, alquilcicloalquilo de C4-20, cicloalquilalquilo de C4-20, alcoxialquilo de C2-20, arilo de C6-14, alquilarilo de C7-20, aralquilo de C7-20, alcoxi de C1-20, hidroxi, hidroxialquilo de C1-20, amino, alquilamino de C1-20, dialquilamino de C2-20, alquenilamino de C2-12, cicloalquilamino de C3-8, arilamino, diarilamino, aril-alquilamino de C1-8, halógeno, mercapto, alqueniloxi de C2-20, cicloalcoxi de C3-8, ariloxi y/o alcoxicarbonilo de C2-8 mediante reacciones de nitrilos de la fórmula general (III) X-CN (III) con hidrógeno a temperaturas desde 20 hasta 250°C y presiones desde 60 hasta 350 bar en presencia de un catalizador que contiene Rh, y el catalizador contiene 0, 1 hasta 5 % en peso de Rh con respecto a la cantidad total del catalizador, sobre un soporte, para obtener mezclas de aminas primarias de la fórmula general (I) X-CH2-NH2 (I) y de aminas secundarias de la fórmula general (II) (X-CH2-)2NH (II) y la devolución a la reacción de al menos parcialmente las aminas primarias separadas de las mezclas obtenidas, y seleccionando la cantidad de las aminas primarias devueltas a la reacción de tal manera que corresponda esencialmente a la cantidad de las aminas primarias presentes después de la reacción.

    35.
    发明专利
    未知

    公开(公告)号:DE50209961D1

    公开(公告)日:2007-05-31

    申请号:DE50209961

    申请日:2002-12-03

    Applicant: BASF AG

    Abstract: Selective hydrogenation of alpha , beta -ethylenically unsaturated aldehydes (II) to corresponding unsaturated alcohols (I) comprises performing reaction in a reactor containing a liquid phase, suspended catalyst and optionally a gas phase, The liquid phase and gas phase (if present) are supplied to the reactor through a device (A) with openings or channels having a hydraulic diameter of 0.5-2 mm. Selective hydrogenation of unsaturated aldehydes of formula R R C=CR -CHO (II) to corresponding alcohols of formula R R C=CR -CH2OH (I) comprises performing the reaction in a reactor containing a liquid phase, suspended catalyst and optionally a gas phase. The liquid phase and optionally the gas phase are supplied to the reactor through a device (A) with openings or channels having a hydraulic diameter of 0.5-2 mm. R , R = H, optionally substituted mono- or polyunsaturated 1-20C alkyl (sic; some of the groups exemplified in the disclosure are saturated), optionally substituted aryl or optionally substituted heterocyclyl; R = H or 1-4C alkyl.

    36.
    发明专利
    未知

    公开(公告)号:DE50112370D1

    公开(公告)日:2007-05-31

    申请号:DE50112370

    申请日:2001-12-21

    Applicant: BASF AG

    Abstract: Secondary amines of the formula (II)whereX is a C1-20-alkyl, C2-20-alkenyl or C3-8-cycloalkyl group which may be unsubstituted or substituted by C1-20-alkyl, C3-8-cycloalkyl, C4-20-alkylcycloalkyl, C4-20-cycoalkylalkyl, C2-20-alkoxyalkyl, C6-14-aryl, C7-20-alkylaryl, C7-20-aralkyl, C1-20-alkoxy, hydroxy, C1-20-hydroxyalkyl, amino, C1-20-alkylamino, C2-20-dialkylamino, C2-12-alkenylamino, C3-8-cycloalkylamino, arylamino, diarylamino, aryl-C1-8-alkylamino, halogen, mercapto, C2-20-alkenyloxy, C3-8-cycloalkoxy, aryloxy and/or C2-8-alkoxycarbonyl,are prepared by reacting nitriles of the formula (III)with hydrogen at from 20 to 250° C. and pressures of from 60 to 350 bar in the presence of an Rh-containing catalyst comprising from 0.1 to 5% by weight, based on the total weight of the catalyst, of Rh on a support to give mixtures of primary amines of the formula (I)and secondary amines of the formula (II)and returning at least part of the primary amines separated from the mixtures obtained to the reaction.

    37.
    发明专利
    未知

    公开(公告)号:AT342883T

    公开(公告)日:2006-11-15

    申请号:AT01130182

    申请日:2001-12-19

    Applicant: BASF AG

    Abstract: Method for production of n-butylamines involves hydroamination of a butadiene-containing mixture (from cracking fractions, LPG/LNG dehydrogenation or GTL technology) with a primary or secondary amine in presence of alkali metal or metal amide catalyst, followed by transalkylation and hydrogenation. Method for the production of n-butyl-amines (I) from a 1,3-butadiene-containing mixture (II) obtained by cracking petroleum fractions or from the dehydrogenation of LPG or LNG or from GTL technology, involves: (a) reaction of (II) with a primary and/or secondary amine (III) under hydroamination conditions in the presence of alkali metal, metal monoalkylamide, metal dialkylamide or a metal amide of amine (III) as catalyst; (b) reaction of the hydroamination product under transalkylation conditions; and (c) reaction under hydrogenating conditions.

    39.
    发明专利
    未知

    公开(公告)号:AT299133T

    公开(公告)日:2005-07-15

    申请号:AT02000129

    申请日:2002-01-04

    Applicant: BASF AG

    Abstract: Mixtures of primary amines of the formula (I)and secondary amines of the formula (II)whereX is C1-20-alkyl, C2-20-alkenyl or C3-8-cycloalkyl which may be unsubstituted or substituted by C1-20-alkyl, C3-8-cycloalkyl, C4-20-alkylcycloalkyl, C4-20-cycloalkylalkyl, C2-20-alkoxyalkyl, C6-14-aryl, C7-20-alkylaryl, C7-20-aralkyl, C1-20-alkoxy, hydroxy, C1-20-hydroxyalkyl, amino, C1-20-alkylamino, C2-20-dialkylamino, C2-12-alkenylamino. C3-8-cycloalkylamino, arylamino, diarylamino, aryl-C1-8-alkylamino, halogen, mercapto, C2-20-alkenyloxy, C3-8-cycloalkoxy, aryloxy and/or C2-8-alkoxycarbonylare prepared by reacting nitriles of the formula (III)with hydrogen at from 50 to 250° C. and pressures of from 5 to 350 bar in the presence of a Pd-containing catalyst comprising, based on the total weight of the catalyst, from 0.1 to 10% by weight of Pd on a support.

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