Novel crown ether functionalized imidazolium-based acidic ionic liquid catalyzed synthesis of pyrazole derivatives under solvent-free conditions

Autor:	D. R. Chandam, Madhukar B. Deshmukh, Abhijeet Mulik, D. R. Patil, Prasad Patil, Suryabala Jagdale
Rok vydání:	2014
Předmět:	chemistry.chemical_classification chemistry.chemical_compound Solvent free chemistry Atom economy Ionic liquid Hydrazine Organic chemistry General Chemistry Pyrazole Hydrate Crown ether Catalysis
Zdroj:	Research on Chemical Intermediates. 41:6843-6858
ISSN:	1568-5675 0922-6168
Popis:	An innovatively designed novel crown ether functionalized imidazolium-based reusable acidic ionic liquid [crown ether MIm] [HSO4] has been efficiently implemented for the synthesis of pyrazole derivatives using various substituted enaminones, hydrazine hydrate and phenyl hydrazine under solvent-free conditions. Structural novelty and task efficiency of the catalyst, high yields of desired products, greener approach attributing high atom economy and solvent-free conditions render this protocol suitable to cope with the current demand in contemporary organic chemistry. The inventive idea of utilizing crown ether functionalized ionic liquid as a catalyst was for the first time demonstrated in this protocol.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f659e4f5ac44e9d35c6bfda60a2b4770 https://doi.org/10.1007/s11164-014-1782-7 Zobrazit plný text záznamu Full text from SpringerLink