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    • 81. 发明授权
    • Method for producing cyclic lactams
    • 环状内酰胺的制备方法
    • US06222033B1
    • 2001-04-24
    • US09403655
    • 1999-10-25
    • Eberhard FuchsRolf Fischer
    • Eberhard FuchsRolf Fischer
    • C07D20108
    • C07D201/08
    • The disclosure is a process for preparing cyclic lactams of the formula I: where R1 is hydrogen, alkyl, cycloalkyl or aryl, and A is C3-C12-alkylene unsubstituted or substituted by 1, 2, 3, 4, 5 or 6 substituents selected independently of one another from the group consisting of alkyl, cycloalkyl and aryl, by conversion of an &ohgr;-aminocarbonitrile of the formula II: HR1N—A—CN  (II) where R1 and A are each as defined above, in the presence of at least one catalyst, which comprises converting said nitrile II into an oligomer mixture, and treating with superheated steam.
    • 本公开是制备式I的环状内酰胺的方法:其中R 1是氢,烷基,环烷基或芳基,A是未被取代或被1,2,3,4,5或6个取代基取代的C 3 -C 12亚烷基, 通过在至少一种催化剂的存在下,通过转化式II的ω-氨基腈(其中R 1和A各自如上所定义),其中包括将所述腈II 进入低聚物混合物,并用过热蒸汽处理。
    • 84. 发明授权
    • Preparation of aliphatic alpha omega-aminonitriles
    • 脂肪族α-ω-氨基腈的制备
    • US5801268A
    • 1998-09-01
    • US846240
    • 1997-04-28
    • Klemens FlickJohann-Peter MelderWerner SchnurrKlaus EbelTom WitzelWolfgang HarderAlwin RehfingerRolf Fischer
    • Klemens FlickJohann-Peter MelderWerner SchnurrKlaus EbelTom WitzelWolfgang HarderAlwin RehfingerRolf Fischer
    • B01J23/76B01J23/78B01J23/889B01J37/02C07C253/30C07C255/24C07C255/03
    • B01J23/76B01J23/78B01J23/8892B01J23/8898B01J37/0201C07C253/30
    • Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal, with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.
    • 脂肪族α,ω-氨基腈通过脂肪族α,ω-二腈在升高的温度和超大气压下,在溶剂和催化剂存在下通过包括使用(a)含有基于化合物的催化剂 在选自镍,钴,铁,钌和铑的金属上,和(b)含有基于(a)0.01至25重量%的基于选自以下的金属的促进剂: 钯,铂,铱,锇,铜,银,金,铬,钼,钨,锰,铼,锌,镉,铅,铝,锡,磷,砷,锑,铋和稀土金属和(c) 基于(a),基于碱金属或碱土金属的化合物为0至5重量%,条件是组分(a)不以铁或铁为基准,并且所选择的金属之一 来自由钴,钌和铑组成的组 母体(b)是基于选自钛,锰,铬和钼的金属的促进剂,进一步的条件是当仅基于钌或铑或钌和铑或镍和铑的化合物为 作为组分(a)选择,可以不用启动子(b)。