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    • 7. 发明公开
    • PROCESS FOR PREPARING AZOMETHINES FROM ALPHA-OXOCARBOXYLATES, AMINES AND ARYL BROMIDES
    • VERFAHREN ZUR HERSTELLUNG VON AZOMETHINEN AUS ALPHA-OXOCARBOXYLATEN,AMINEN UND ARYLBROMIDEN
    • EP2640692A1
    • 2013-09-25
    • EP11784515.6
    • 2011-11-18
    • Saltigo GmbH
    • COTTE, AlainGOTTA, MatthiasGOOßEN, LukasRUDOLPHI, FelixSONG, Bingrui
    • C07C249/02C07C319/24C07D213/127C07D213/53C07D307/52C07D333/22
    • C07C253/00C07C45/42C07C249/02C07C253/30C07C319/20C07C2601/14C07C2603/26C07D213/53C07D307/52C07D333/22C07C251/18C07C251/24C07C255/61C07C323/45
    • A process for preparing azomethines of the general formula (V) where R is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, and R
      1 is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, R
      2 is hydrogen or an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted cycloalkyl radical or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms by reacting alpha-oxo carboxylates of the general formula (I) where n is a number in the range from 1 to 6, M
      (n+) is a cation, with aryl bromides of the general formula (IV) and amines of the general formula (II) via the alpha-iminocarboxylate intermediate of the general formula (III), in the presence of two transition metals or compounds thereof as catalyst, is described.
    • 一种制备通式(Ⅴ)的偶氮甲碱的方法,其中R是具有6至24个碳原子的任选取代的碳环芳族基团或任选取代的烷基或任选取代的具有5至24个碳原子的杂芳基,R 1是 具有6至24个碳原子的任选取代的碳环芳族基团或具有5至24个碳原子的任选取代的杂芳族基团,R 2是氢或具有6至24个碳原子的任选取代的碳环芳族基团或任选取代的烷基或 任选取代的环烷基或具有5至24个碳原子的任选取代的杂芳族基团,其中通式(I)的α-氧代羧酸盐,其中n为1至6的数,M(n +)为阳离子, 与通式(Ⅳ)的芳基溴化物ƒ€ƒ€€ƒ€ƒ€ƒ€ƒR 1 -Br€ƒ€ƒ€ƒ(Ⅳ)和胺 通式(II)€ƒ€€ƒ€ƒ€ƒ€ƒ€ƒR 2 -NH 2€ƒ€ƒ€ƒ€ƒ(II)通过通式的α-亚氨基羧酸盐中间体( III)在两种过渡金属或其化合物作为催化剂的存在下进行了描述。