Monocyclic 1,2,3-Triazin-4(3H)-ones: Synthesis, Structure and Photochemical Behaviour
作者:Angela Maria Celli、Serena Ferrini、Fabio Ponticelli
DOI:10.1002/ejoc.200600119
日期:2006.7
Oxidation of the easily available 1-(alkylamino)pyrazolones allows the preparation of the title compounds, which are a new class of heterocycles, in good yields. The structure of these compounds is assigned on the basis of HR mass spectroscopy and sodium borohydride reduction to (Z,E)-2-methyl-3-phenyl-N-(1-phenylethyl)acrylamide. Ring contraction/rearrangement to 2-alkyl-2H-1,2,3-triazole is observed
容易获得的 1-(烷基氨基)吡唑啉酮的氧化允许以良好的产率制备作为一类新杂环的标题化合物。这些化合物的结构基于 HR 质谱和硼氢化钠还原为 (Z,E)-2-甲基-3-苯基-N-(1-苯基乙基)丙烯酰胺。在紫外线照射下观察到环收缩/重排为 2-烷基-2H-1,2,3-三唑。提出了对观察到的过程可能的机械合理化。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)