Formation of triazole and isoxazole derivatives from .BETA.-substituted pyridinium salts.
作者:SHIGERU TANAKA、KAZUYUKI WACHI、ATSUSUKE TERADA
DOI:10.1248/cpb.28.2083
日期:——
Treatment of 1-methyl-3-(3-phenyl-1-triazenyl) pyridinium iodide (2a-e) with base gave triazole derivatives (3 and 4) with expulsion of the pyridine ring. Similarly, the reaction of 1-methyl-3-benzoylpyridinium oxime iodide (10a-c) with base afforded isoxazole derivatives. A possible mechanism for the formation of these reaction products is discussed.
将1-甲基-3-(3-苯基-1-三氮烯基)吡啶碘化物(2a-e)与碱反应,得到三唑衍生物(3和4),伴随吡啶环的排除。类似地,1-甲基-3-苯甲酰吡啶肟碘化物(10a-c)与碱的反应生成了异恶唑衍生物。讨论了这些反应产物形成的可能机制。