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Öğe Benzylic imidazolidinium, 3,4,5,6-tetrahydropyrimidinium and benzimidazolium salts(Wiley-V C H Verlag Gmbh, 2008) Yasar, Sedat; Oezdemir, Ismail; Cetinkaya, Bekir; Renaud, Jean-Luc; Bruneau, ChristianImidazoliidinium, tetrahydropyrimidinium and benzimidazolium. salts were prepared. Upon reaction with tBuOK, they generate carbene ligands, which were associated in situ to [RuCp*(MeCN)(3)]PF6 to produce ruthenium catalysts that are active for the substitution of allylic substrates by dimethyl of the N-heterocyclic structures, as well as that of the benzyhc N-substituents, on the reactivity and regioselectivity were examined. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).Öğe Heck and suzuki reactions of aryl halides catalyzed by 1,3-dialkylimidazolinium/palladium(Science Press, 2008) Yasar, Sedat; Oezdemir, Ismail; Cetinkaya, BekirNew, sterically demanding 1,3-dialkylimidazolinium salts used as N-heterocyclic carbene precursors were synthesized and characterized. These salts, combined with palladium acetate, provided active catalysts for Heck and suzuki cross-coupling of aryl chlorides and bromides under mild conditions.