U 52 Unexpected dimerization of 5,7-dimethyl-2-trifluoromethyl-8-azachromone induced by hydrogen sulfide [Electronic resource] / M. A. Barabanov, V. Ya. Sosnovskikh, V. S. Moshkin, M. I. Kodess // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 11. - P2094-2097. - Bibliogr. : p. 2097 (18 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Depending on the reaction conditions, the reaction of 5,7-dimethyl-2-trifluoromethyl-8-azachromone with hydrogen sulfide afforded cyclic and linear dimers with the S-S bond. The regio- and stereochemistry of the reaction products were determined by 1H and 13C NMR spectroscopy \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (11), 2094-2097.pdf |