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    Preparation of aromatic/aliphatic nitriles
    1.
    发明授权
    Preparation of aromatic/aliphatic nitriles 失效
    芳香/脂族腈的制备

    公开(公告)号：US4438042A

    公开(公告)日：1984-03-20

    申请号：US378226

    申请日：1982-05-14

    申请人： Roland Jacques ,  Michel Reppelin ,  Laurent Seigneurin

    发明人： Roland Jacques ,  Michel Reppelin ,  Laurent Seigneurin

    IPC分类号： C07B61/00 ,  B01J21/00 ,  B01J27/12 ,  C07C67/00 ,  C07C253/00 ,  C07C255/32 ,  C07C255/33 ,  C07C255/49 ,  C07C255/50 ,  C07C255/54 ,  C07C313/00 ,  C07C323/62 ,  C07C120/10

    CPC分类号： B01J27/12 ,  C07C253/20

    摘要： Aromatic/aliphatic nitriles having the formula:Ar--A--CN (I)wherein Ar is phenyl or substituted phenyl and A is a direct chemical bond or a hydrocarbon having from 1 to 6 carbon atoms, are conveniently prepared by heating to a temperature ranging from about 450.degree. C. to about 550.degree. C. a formamide or formanilide having the formula:Ar--A--NHCHO (II)or an amide having the formula:Ar--A--CONH.sub.2 (III)in the presence of a fluorinated siliceous catalyst, said catalyst having been prepared by (i) impregnating a particulate silica prepared by the precipitation of sodium silicate with sulfuric acid, with a dilute aqueous solution of hydrofluoric acid, said hydrofluoric acid solution having a concentration in HF of less than about 5% by weight, and the ratio by weight of the hydrofluoric acid contained in said aqueous solution thereof to the silica being less than about 5%, followed by (ii) drying the catalyst thus impregnated.

    摘要翻译： 具有下式的芳族/脂族腈通过加热至温度范围，方便地制备，其中Ar为苯基或取代苯基，A为直接化学键，或具有1至6个碳原子的烃 具有下式的Ar-A-NHCHO（II）或具有式Ar-A-CONH 2（III）的酰胺的甲酰胺或甲酰苯胺在氟化硅质存在下的约450℃至约550℃。 催化剂，所述催化剂通过（i）用硫酸沉淀硅酸钠制备的颗粒二氧化硅与稀氢氟酸水溶液浸渍制备，所述氢氟酸溶液的HF浓度小于约5％ ，并且所述水溶液中所含的氢氟酸与二氧化硅的重量比小于约5％，然后（ii）干燥所浸渍的催化剂。

    Preparation of aromatic/aliphatic nitriles
    4.
    发明授权
    Preparation of aromatic/aliphatic nitriles 失效
    芳香/脂族腈的制备

    公开(公告)号：US4436669A

    公开(公告)日：1984-03-13

    申请号：US378191

    申请日：1982-05-14

    申请人： Roland Jacques ,  Michel Reppelin ,  Laurent Seigneurin

    发明人： Roland Jacques ,  Michel Reppelin ,  Laurent Seigneurin

    IPC分类号： C07B61/00 ,  B01J21/00 ,  B01J27/12 ,  C07C67/00 ,  C07C253/00 ,  C07C255/32 ,  C07C255/33 ,  C07C255/49 ,  C07C255/50 ,  C07C255/54 ,  C07C120/10

    CPC分类号： B01J27/12 ,  C07C253/20

    摘要： Aromatic/aliphatic nitriles having the formula:Ar--A--CN (I)wherein Ar is phenyl or substituted phenyl and A is a direct chemical bond or a hydrocarbon having from 1 to 6 carbon atoms, are conveniently prepared by heating to a temperature ranging from about 450.degree. C. to about 550.degree. C. a formamide or formanilide having the formula:Ar--A--NHCHO (II)or an amide having the formulaAr--A--CONH.sub.2 (III)in the presence of a fluorinated siliceous catalyst, said catalyst having been prepared by (i) impregnating a particulate silica containing from about 0.05 to about 2% by weight of fluorine, expressed as F.sup.- bonded to the silica, with a dilute aqueous solution of hydrofluoric acid, said hydrofluoric acid solution having a concentration in HF of less than about 5% by weight, and the ratio by weight of the hydrofluoric acid contained in said aqueous solution thereof to the silica being less than about 5%, followed by (ii) drying the catalyst thus impregnated.

    摘要翻译： 具有下式的芳族/脂族腈通过加热至温度范围，方便地制备，其中Ar为苯基或取代苯基，A为直接化学键，或具有1至6个碳原子的烃 具有式Ar-A-NHCHO（II）或具有式Ar-A-CONH 2（III）的酰胺的甲酰胺或甲酰苯胺在氟化硅质催化剂存在下的约450℃至约550℃ 所述催化剂是通过以下步骤制备的：（i）用稀氢氟酸水溶液浸渍含有约0.05至约2重量％的以F-键合到二氧化硅的氟的颗粒状二氧化硅，所述氢氟酸溶液具有 HF中的浓度小于约5重量％，并且所述水溶液中所含的氢氟酸与二氧化硅的重量比小于约5％，随后（ii）干燥所浸渍的催化剂。