Peruncheralathan S, Khan T A, Ila H, Junjappa H
Department of Chemistry, Indian Institute of Technology, Kanpur-208016, India.
J Org Chem. 2005 Nov 25;70(24):10030-5. doi: 10.1021/jo051771u.
[reaction: see text] Highly efficient and regioselective synthesis of 1-aryl-3,4-substituted/annulated-5-(methylthio)pyrazoles and 1-aryl-3-(methylthio)-4,5-substituted/annulated pyrazoles has been reported via cyclocondensation of arylhydrazines with either alpha-oxoketene dithioacetals or beta-oxodithioesters.
[反应：见正文] 据报道，通过芳基肼与α-氧代烯酮二硫代缩醛或β-氧代二硫代酯的环缩合反应，可高效且区域选择性地合成1-芳基-3,4-取代/稠合-5-(甲硫基)吡唑和1-芳基-3-(甲硫基)-4,5-取代/稠合吡唑。
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