S 98 Synthesis of 1-Substituted 2-Azaspiro[4.5]deca-6,9-dien-8-ones and 2-Azaspiro[4.5]deca-1,6,9-trien-8-ones by Condensation of 2,6-Dimethylphenol with Isobutyraldehyde and Nitriles / Y. S. Rozhkova, K. A. Khmelevskaya, Yu. V. Shklyaev, M. A. Ezhikova, M. I. Kodess // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2012. - Vol. 48, № 1. - С. 69-77. - Bibliogr. : p. 77 (39 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): STAPHYLOTRICHUM-COCCOSPORUM -- RADICAL CYCLIZATION -- RUTHENIUM COMPLEXES Аннотация: 1-Substituted 3,3,7,9-tetramethyl-2-azaspiro[4.5]deca-6,9-dien-8-ones and 3,3,7,9-tetramethyl-2azaspiro[4.5]deca-1,6,9-trien-8-ones were synthesized by three-component condensation of 2,6-dimethylphenol with isobutyraldehyde and nitriles in concentrated sulfuric acid |