Betaine–Carbene Interconversions. From N-Ylides to Zwitterionic N-Heterocyclic Carbene–Borane Adducts

…, MHH Drafz, M Nieger, A Schmidt

Index: Schmidt, Andreas; Beutler, Ariane; Albrecht, Marcel; Snovydovych, Bohdan; Ramirez, Francisco Javier Organic and Biomolecular Chemistry, 2008 , vol. 6, # 2 p. 287 - 295

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Citation Number: 25

Abstract

In the presence of NBS 3-methylindole reacted with various imidazoles to give the (indol-2- yl) imidazolium salts 21a–f, which were converted in aqueous solution into the 2- (imidazolium-3-yl)-3-methylindolates 22a–f by base. These conjugated ylides which