abstracts - Институт катализа им. Г.К. Борескова

KS-II-3BASE AND ACIDIC CATALYSIS IN DIMETHYL CARBONATE CHEMISTRYTundo P.Department of Environmental Science, Ca’ Foscari University, Dorsoduro 2137, 30123Venice, ItalyInter University Consortium Chemistry for the Environment, INCAE-mail: tundop@unive.itDimethylcarbonate (DMC) is a valuable methylating reagent which can replace methylhalides and dimethylsulfate in the methylation of a variety of nucleophiles. It couples tunablereactivity, and unprecedented selectivity towards mono-C- and mono-N-methylation.The high selectivity in methylation reactions is due to the double reactivity of DMC whichreacts on its hard centre (the carbonyl group) with harder nucleophiles and on its soft one (themethyl group) with softer nucleophiles. Recently achieved selectivity with nucleophiles onN, O, S and C will be given.Activation of DMC on acidic catalysts zeolites, selectivity toward several functional groupsand the related reaction mechanism will be reported as well.Depending on the reaction conditions, DMC can be reacted under plug-flow, CSTR, or batchconditions. Other remarkable reactions are those where DMC behaves as an oxidant.42