ナノメディシンとナノテクノロジーのジャーナル

概要

Metal (Au, Ag and Cu) NPs in Ionic Liquid: Potential Catalytic System for Organic Reactions

Prashant Singh, Kamlesh Kumari and Ramesh Chandra

Metal nanoparticles were synthesized and used to carry out organic transformation in short duration of time with excellent yield. Synthesized Au NPs in Ionic Liquid (IL) catalyzed the condensation between active methylene compounds and aldehydes in high yields and in short duration. Also, a new, simple and highly efficient methodology was described for the oxidation of thiols to form disulfides using easily recyclable silver nanoparticles to give the corresponding products in shorter duration of time with good to high yield. It was found that silver nanoparticles in ionic liquid showed the best activity. A new, simple and highly efficient methodology was described for the acetylation of alcohols, amines and thiols using easily recyclable Cu NPs to give the corresponding products in shorter duration of time with good to high yield. We found that Cu NPs in IL showed the best activity. These protocols avoid the use of expensive reagents, high temperatures and the reaction being performed in water serves as a green and efficient method. It is remarkable that the reaction in IL which makes the procedure quite simple, more convenient and environmentally benign.