P 17 Palladium(II)-Catalyzed Oxidative C–H/C–H Coupling and Eliminative SNH Reactions in Direct Functionalization of Imidazole Oxides with Indoles / M. V. Varaksin, I. A. Utepova, O. N. Chupakhin, V. N. Charushin // Journal of Organic Chemistry. - 2012. - Vol.77, №20. - С. 9087-9093 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): IMIDAZOLE OXIDES -- INDOLES Аннотация: Two novel synthetic approaches to realize the direct C(sp2)–H bond functionalization in cyclic nitrones are reported. Palladium(II)-catalyzed oxidative C–C coupling of 2,2-dialkyl-4-phenyl-2H-imidazole 1-oxides with indoles was shown to result in the formation of 5-indolyl-3-yl derivatives, while nucleophilic substitution of hydrogen (SNH) at C(5) of the same imidazole system was found to afford the corresponding deoxygenated compounds \\\\Expert2\\nbo\\Journal of Organic Chemistry\\2010, v.77, p.9087.pdf |