Lewis Base Catalyzed Synthesis of Multisubstituted 4-Sulfonyl-1H-Pyrazole Involving a Novel 1,3-Sulfonyl Shift
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  • 作者:Yu Zhu ; Wen-Ting Lu ; Hong-Chao Sun ; Zhuang-Ping Zhan
  • 刊名:Organic Letters
  • 出版年:2013
  • 出版时间:August 16, 2013
  • 年:2013
  • 卷:15
  • 期:16
  • 页码:4146-4149
  • 全文大小:283K
  • 年卷期:v.15,no.16(August 16, 2013)
  • ISSN:1523-7052
文摘
A facile synthesis of highly substituted 4-sulfonyl-1H-pyrazoles from N-propargylic sulfonylhydrazone derivatives has been developed. Allenic sulfonamide formation and 1,3-sulfonyl shift were established to be the critical steps of this transformation.

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