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Pure Appl. Chem., 2009, Vol. 81, No. 12, pp. 2337-2354

Published online 2009-11-16

Metal nanoparticles as efficient catalysts for organic reactions

Brindaban C. Ranu*, Kalicharan Chattopadhyay, Laksmikanta Adak, Amit Saha, Sukalyan Bhadra, Raju Dey and Debasree Saha

Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India

Abstract: Pd(0) nanoparticles have been demonstrated to be very efficient catalysts for C–C bond-forming reactions. These include coupling of vicinal-diiodoalkenes and acrylic esters and nitriles leading to the stereoselective synthesis of 2-alkene-4-yn-esters and nitriles, allylation of active methylene compounds by allyl acetate, and Hiyama cross-coupling of aryliodides with arylsilanes. Cu(0) nanoparticles catalyze aryl-sulfur bond formation, accomplishing the synthesis of functionalized aryl sulfides and aryl- and vinyl dithiocarbamates. Cu nanoparticles have also been used for the chemoselective reduction of aromatic nitro compounds.