Regioselective Synthesis of Fused Azo-linked Pyrazolo[4,3-e]pyridines Using Nano-Fe3O4  

作　　者：Nikpassand, Mohammad Zare, Leila Shafaati, Tamila Shariati, Shahaba 

机构地区：[1]Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran [2]Department of Chemistry, Payame Noor University, PO Box 19395-3697 Tehran, Iran

出　　处：《Chinese Journal of Chemistry》2012年第3期604-608,共5页中国化学（英文版）

摘　　要：A multicomponent reaction for the synthesis of fused azo-linked pyrazolo[4,3-e]pyridines from 3-amino-5-methylpyrazole, indan-l,3-dione and synthesized azo-linked aldehydes using nano-Fe304 as an effective and reusable catalyst is reported. The present methodology offers several advantages, such as a simple procedure with an easy work-up, short reaction times, high yields, and the absence of any volatile and hazardous organic sol- vents.A multicomponent reaction for the synthesis of fused azo-linked pyrazolo[4,3-e]pyridines from 3-amino-5-methylpyrazole, indan-l,3-dione and synthesized azo-linked aldehydes using nano-Fe304 as an effective and reusable catalyst is reported. The present methodology offers several advantages, such as a simple procedure with an easy work-up, short reaction times, high yields, and the absence of any volatile and hazardous organic sol- vents.

关 键 词：MULTICOMPONENT pyrazolo[4 3-e]pyridines 3-amino-5-methylpyrazole indan-l 3-dione 

分 类 号：O626.21[理学—有机化学] TB383[理学—化学]