Chemoselectivity in reactions of hydrazonoyl halides with ethyl 2(3<i>H</i>)-permidinylideneacetate
作者:Ahmed Sami Shawali、Thoraya A. Farghaly、Tarek M. S. Nawar
DOI:10.1002/jhet.2151
日期:2016.5
C‐ethoxycarbonyl‐N‐arylmethanehydrazonoyl chlorides 2 and 7 in different ways yielding 2‐(pyrazoliden‐4‐yl) perimidines 5 and substituted pyrrolo[1,2‐a] perimidines 9, respectively. The mechanisms of the reactions studied are discussed, and the structures of the products were confirmed by spectral and elemental analyses and by alternate synthesis.
2(3 H)-亚苄基乙酸乙酯1与C-芳基-N-芳基甲hydr基酰氯和C-乙氧基羰基-N-芳基甲hydr基酰氯2和7反应的方式不同,生成2-(吡唑啉代-4-基)过嘧啶5和取代的吡咯并[1 ,2- a ]分别为亚丙基9。讨论了所研究反应的机理,并通过光谱和元素分析以及交替合成证实了产物的结构。