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    • 3. 发明授权
    • Preparation of substituted-1,2,3-triazoles
    • 取代-1,2,3-三唑的制备
    • US07550601B1
    • 2009-06-23
    • US11203578
    • 2005-08-15
    • Gregory W. DrakeGregory M. KaplanTommy W. Hawkins
    • Gregory W. DrakeGregory M. KaplanTommy W. Hawkins
    • C07D249/04
    • C07D249/04
    • The invention provides a high yield/isomerically pure synthesis of new 1-amino-3-substituted-1,2,3-triazolium salts and their subsequent transformation into isomerically pure 1-substituted-1,2,3-triazoles. These new 1-amino-3-substituted-1,2,3-triazolium salts are easily isolated and can be stored at ambient conditions with no degradation or isomerization. These quarternary salts are easily converted with appropriate silver salts to a wide array of new quarternary salts with various anions, with many of these new salts having melting points below 100 C, classifying them as ionic liquids. Subsequent diazotization of these 1-amino-3-substituted-1,2,3-triazolium salts results in high yields of isomerically pure 1-substituted-1,2,3-triazoles, that until this invention were problematic to make pure without tedious reagents or workup procedures. Both classes of materials (1-amino-3-substituted-1,2,3-triazolium salts as well as 1-substituted-1,2,3-triazoles) should be of high interest as these classes of materials are known to be very important pharmaceutical materials for a wide array of medical and agricultural applications as well as possible propellant applications.
    • 本发明提供了新的1-氨基-3-取代-1,2,3-三唑鎓盐的高产率/异构纯合成,并且随后转化为异构纯的1-取代-1,2,3-三唑。 这些新的1-氨基-3-取代-1,2,3-三唑鎓盐易于分离,并且可以在没有降解或异构化的环境条件下储存。 这些季盐易于用适当的银盐转化成各种各种阴离子的新季盐,其中许多这些新盐的熔点低于100℃,将它们分类为离子液体。 随后的这些1-氨基-3-取代-1,2,3-三唑鎓盐的重氮化导致异构纯的1-取代-1,2,3-三唑的高产率,直到本发明是有问题的,使纯净而不乏味 试剂或后处理程序。 两类材料(1-氨基-3-取代-1,2,3-三唑鎓盐以及1-取代-1,2,3-三唑)应该是高度兴趣的,因为这些类别的材料已知是 非常重要的药物材料,用于广泛的医疗和农业应用以及可能的推进剂应用。