Вид документа : Статья из журнала Шифр издания : 54 Автор(ы) : Belskaia N. P., Bakulev V. A., Deryabina T. G., Subbotina J.O., Kodess M. I. Заглавие : 3-Alkylsulfanyl-2-arylazo-3-(pyrrolidin-1-yl)-acrylonitriles as masked 1,3-dipoles Место публикации : Tetrahedron. - 2009. - Vol. 65, № 36. - С. 7662-7672 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Reaction of 3-alkylsulfanyl-2-arylazo-3-(pyrrolidin-1-yl)acrylonitriles with maleimides, dimethyl maleate and dimethylacetylene dicarboxylate were carried out to give octahydro-pyrrolo[3,4-a]pyrrolizin-4-ylidenes, hexahydro-pyrrolizines and 6,7-dihydro-5H-pyrrolizines. The formation of the synthesized compounds is explained by a 1,3-dipolar cycloaddition of an in situ generated azomethine ylide. The mechanisms of the formation of these active intermediates were discussed with the aid of density functional theory methods with the B3LYP functional 6-31G+ calculations using the STQN method and chemical experiments Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Belskaia, N. P.; Bakulev, V. A.; Deryabina, T. G.; Subbotina, J.O.; Kodess, M. I.; Кодесс Михаил Исаакович