Silver(I)-Catalyzed Facile Synthesis of Pyrazoles From Propargyl N-Sulfonylhydrazones

A silver(I)-catalyzed facile formation of pyrazoles from propargyl N-sulfonylhydrazones has been disclosed. During the reaction, a migration of sulfonyl groups (Ts, Ms) was observed. Good functional group compatibility was observed under mild reaction conditions (at room temperature for 3−5 h). This...

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Veröffentlicht in:	Journal of organic chemistry 2008-06, Vol.73 (12), p.4698-4701
Hauptverfasser:	Lee, Young Tak, Chung, Young Keun
Format:	Artikel
Sprache:	eng
Schlagworte:	Catalysis Chemistry Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with several n hetero atoms in the same ring, in separated rings or in fused rings Hydrazones - chemistry Organic chemistry Preparations and properties Pyrazoles - chemical synthesis Pyrazoles - chemistry Silver - chemistry
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