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    • 2. 发明公开
    • 3,5-류티딘의 제조 방법
    • 制备3,5-LuTIDINE
    • KR1020000048850A
    • 2000-07-25
    • KR1019997002852
    • 1997-10-03
    • 이 아이 듀폰 디 네모아 앤드 캄파니
    • 아메이,로날드,리
    • C07D213/09
    • C07D213/08
    • PURPOSE: Provided is a process for the manufacture of 3,5-lutidine which is used as a catalyst in epoxy cross-linking reactions, as a solvent in high temperature applications, and as an intermediate in the synthesis of pharmaceuticals, agrochemical, and corrosion inhibitors, and 3-picoline which is used as an intermediate in the manufacture of niacin and niacinamide. CONSTITUTION: 3,5-lutidine and 3-picoline are obtained from 2-methyl-1,5-pentanediamine by vapor phase reaction with hydrogen at about 400-500°C over an oxide catalyst. The process is continuous and produces a product stream comprising the steps: (a) feeding hydrogen or hydrogen mixed with inert gases and volatilized 2-methyl-1,5-pentanediamine over an oxide catalyst at about 400-500°C, (b) condensing liquid products from the product stream, and (c) recovering 3,5-lutidine and 3-picoline.
    • 目的:提供在环氧交联反应中用作催化剂的3,5-二甲基吡啶的制备方法,作为高温应用中的溶剂,以及作为药物,农业化学品和腐蚀剂的合成中的中间体 抑制剂和3-甲基吡啶,其用作制备烟酸和烟酰胺的中间体。 构成:通过在约400-500℃下通过氧化催化剂与氢气与氢气反应从2-甲基-1,5-戊二胺获得3,5-二甲基吡啶和3-甲基吡啶。 该方法是连续的并且产生产物流,其包括以下步骤:(a)在约400-500℃下在氧化物催化剂上加入与惰性气体和挥发的2-甲基-1,5-戊二胺混合的氢或氢,(b) 从产物流冷凝液体产物,(c)回收3,5-二甲基吡啶和3-甲基吡啶。