caa a22 4500 445876735 CHVBK 20180317145530.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10593-011-0862-5 doi (NATIONALLICENCE)springer-10.1007/s10593-011-0862-5 Heterocyclization of 3-(R-amino)-3-methylthio-1-phenylpropenones and 5-benzoyl-6-methylthio-1,2-dihydropyridin-2-ones with 1,2- and 1,3-dinucleophilic reagents [Elektronische Daten] [V. Britsun, N. Pikun, A. Ryabitskii, M. Lozinskii] The interaction of 3-(R-amino)-3-methylthio-1-phenylpropenones and 1-alkyl-5-benzoyl-3-ethoxy-carbonyl-6-methylthio-1,2-dihydropyridin-2-ones with N,N- and N,C-1,2- and 1,3-dinucleophiles proceeded regioselectively by [3 + 2] and [3 + 3] cyclocondensation with the formation of derivatives of pyrazole, benzimidazo[1,2-a]-pyridine, benzimidazo[1,2-a]pyrimidine, imidazo[1,2-a]pyrimidine, [1,2,4]triazolo[4,3-b]pyridazine, and 6,7-dihydro-2H-pyrazolo[3,4-b]pyridine. The regioselectivity of the reactions carried out was analyzed. Springer Science+Business Media, Inc., 2011 1-alkyl-5-benzoyl-3-ethoxycarbonyl-6-methylthio-1,2-dihydropyridin-2-ones nationallicence 6-amino-5-benzoyl-3-ethoxycarbonyl-1-methyl-1,2-dihydropyridin-2-one nationallicence 3-(R-amino)-3-methylthio-1-phenyl-propenones nationallicence 1-R1-5-(R-amino)-3-phenylpyrazoles nationallicence benzimidazo[1,2- a ]pyridines nationallicence benzimidazo[1,2- a ]-pyrimidines nationallicence 6,7-dihydro-2 H -pyrazolo[3,4- b ]pyridines nationallicence 1,2,4-triazole nationallicence [1,2,4]triazolo[4,3- b ]pyridazines nationallicence heterocyclization nationallicence [3 + 2] and [3 + 3] cyclocondensations nationallicence Britsun V. Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., 02094, Kyiv, Ukraine aut Pikun N. Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., 02094, Kyiv, Ukraine aut Ryabitskii A. Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., 02094, Kyiv, Ukraine aut Lozinskii M. Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., 02094, Kyiv, Ukraine aut Chemistry of Heterocyclic Compounds Springer US; http://www.springer-ny.com 47/8(2011-11-01), 970-976 0009-3122 47:8<970 2011 47 10593 https://doi.org/10.1007/s10593-011-0862-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10593-011-0862-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Britsun V. Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., 02094, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Pikun N. Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., 02094, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Ryabitskii A. Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., 02094, Kyiv, Ukraine aut NATIONALLICENCE 700 1- Lozinskii M. Institute of Organic Chemistry, National Academy of Sciences of Ukraine, 5 Murmanska St., 02094, Kyiv, Ukraine aut NATIONALLICENCE 773 0- Chemistry of Heterocyclic Compounds Springer US; http://www.springer-ny.com 47/8(2011-11-01), 970-976 0009-3122 47:8<970 2011 47 10593 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer