R 30 Reactions of sigma(H)-adducts of 1-ethyl-1,4-diazinium salts with arylalkynes as a one-step approach to pyrrolo[1,2-a]pyrazine derivatives [Electronic resource] / E. V. Verbitskiy, P. A. Slepukhin, M. A. Ezhikova, M. I. Kodess, G. L. Rusinov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2009. - Vol. 58, № 6. - P1291-1293 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The O- and C-adducts of 5-aryl and 5-hetaryl-2,3-dicyano-1-ethylpyrazinium salts are hidden sources of ylides, which can be used for the cyclization with arylacetylenes giving rise to pyrrolo[1,2-a]pyrazines \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2009, 58 (6), 1291-1293.pdf |
R 30 Reactions of 5-(het)aryl-1-ethyl-2(1H )-pyrazinones with terminal arylacetylenes promoted by microwave radiation / E. V. Verbitskiy, E. M. Cheprakova, P. A. Slepukhin, M. G. Pervova, M. A. Samorukova, O. N. Zabelina, G. L. Rusinov, V. N. Charushin // Chemistry of Heterocyclic Compounds. - 2011. - Vol. 47, № 6. - P710-718. - Bibliogr. : p. 718 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ARYLACETYLENES -- MICROWAVE RADIATION -- IONIC LIQUID Аннотация: The reaction of 5-(het)aryl-1-ethyl-2(1H)-pyrazinones with terminal arylacetylenes, leading to a mixture of two isomeric 4-aryl- and 5-aryl-substituted 2(1H)-pyridones has been investigated. The regioselectivity of this reaction has been shown on the basis of reaction mixtures study by chromato-mass spectrometry. A crystallographic investigation of the synthesized 2(1H)-pyridones and also a forecast of their potential biological activity have been carried out \\\\Expert2\\nbo\\Chemistry of Heterocyclic Compounds\\2011, v.47, N 6, p.710-718.pdf |
M 65 Microwave-promoted reactions of 5-(het)-aryl-1-ethyl-2(1h)-pyrazinones with terminal arylacetylenes / E. V. Verbitskiy, E. M. Cheprakova, P. A. Slepukhin, I. G. Pervova, M. A. Samorukova, O. N. Zabelina, G. L. Rusinov, V. N. Charushin // Chemistry of Heterocyclic Compounds. - 2011. - № 6. - С. 860-870 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PYRAZINONES -- ARYLACETYLENES |