Polyethylene Gylcol (PEG-400) as an Efficient and Recyclable Reaction Medium for One-Pot Three-Component Synthesis of Imidazo[1,2-a]pyridine Derivatives
An iron(III)-catalyzed one-potthree-component cross-coupling nitration reaction of 2-aminopyridines, aldehydes and nitroalkanes, straightforwardly forms imidazo[1,2-a]pyridinederivatives and is described in this report. The system shows good functional-group tolerance and proceeds smoothly in moderate to good yields.
Polyethylene Gylcol (PEG-400) as an Efficient and Recyclable Reaction Medium for One-Pot Three-Component Synthesis of Imidazo[1,2-a]pyridine Derivatives
作者:P. Ramesh、K. Bhaskar
DOI:10.14233/ajchem.2016.20061
日期:——
Polyethylene glycol (PEG) was found to be an inexpensive nontoxic and effective medium for the one-pot three-component synthesis of imidazo[1,2-a]pyridine derivatives under catalyst-free conditions in excellent yields. Environmental acceptability, low cost, high yields and recyclability of the polyethylene glycol are the important features of this protocol.