Zobrazeno 1 - 10
of 11
pro vyhledávání: '"A. S. Tyaglivy"'
Publikováno v:
Chemistry of Heterocyclic Compounds. 49:1255-1263
The reaction of 3-alkynylquinoxaline-2-carbonitriles with sodium azide in DMF at 60 °C leads to the formation of 4,5-disubstituted 2H-1,2,3-triazoles in 38-82% yields. The analogous reaction in toluene in the presence of AlCl3 takes place as a tande
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b984b0832501a3124964f5c391a156a5
https://doi.org/10.1007/s10593-013-1373-3
https://doi.org/10.1007/s10593-013-1373-3
Publikováno v:
Tetrahedron. 69:9804-9812
3-Alkynylquinoxaline-2-carbonitriles have been synthesized from 3-chloroquinoxaline-2-carbonitrile via the Sonogashira reaction. Treatment of 3-alkynylquinoxaline-2-carbonitriles with an alkylamine or ammonia has been shown to produce stable enamines
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f710defa6293286834832ec968ed6e17
https://doi.org/10.1016/j.tet.2013.09.005
https://doi.org/10.1016/j.tet.2013.09.005
Autor:
Anna V. Gulevskaya, A. S. Tyaglivy
Publikováno v:
Chemistry of Heterocyclic Compounds. 48:82-94
In this review, data on the heterocyclization of enediynes, initiated by attack of an external anionic nucleophile or a nucleophilic group present in the molecule at the C ≡ C bond of the enediyne, are summarized.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::064f98af0c4370f69ce202de22f28a91
https://doi.org/10.1007/s10593-012-0972-8
https://doi.org/10.1007/s10593-012-0972-8
Publikováno v:
Tetrahedron. 68:488-498
The reactivity of 3-alkynyl-2-chloroquinoxalines, 2,3-dialkynylquinoxalines, and some related pyrazine derivatives toward carbanions of the CH-acids (malononitrile, ethyl cyanoacetate, diethyl malonate, 1,3-dimethylbarbituric acid) has been studied.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8020a22730aacf2d4845c9b9d4aa441
https://doi.org/10.1016/j.tet.2011.11.018
https://doi.org/10.1016/j.tet.2011.11.018
Autor:
Oleg A. Dyachenko, Olga N. Kazheva, Alexander F. Pozharskii, Anna V. Gulevskaya, A. S. Tyaglivy, Shee Van Dang, A. N. Chekhlov
Publikováno v:
Tetrahedron. 66:146-151
6,7-Dialkynyl-1,3-dimethylpteridine-2,4(1H,3H)-diones and 2,3-dialkynylquinoxalines have been shown to react with sodium azide in DMF at room temperature giving rise 9,11-dimethyl-[1,2,3]triazolo[1′,5′;1,2]pyrido[4,3-g]pteridine-8,10(9H,11H)-dion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cdd640fd91be163afc913744f09bf9e
https://doi.org/10.1016/j.tet.2009.11.039
https://doi.org/10.1016/j.tet.2009.11.039
Autor:
D. V. Steglenko, Alexander F. Pozharskii, Anna V. Gulevskaya, Julia I. Nelina-Nemtseva, A. S. Tyaglivy
Publikováno v:
ChemInform. 45
This publication constitutes the careful revision of a previous investigation revealing that [1,2,3]triazolo[1,5-a]pyridines and not 1H-benzotriazoles are obtained by the applied methodology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8cb2ef3c54a996106b3e10169032c23
https://doi.org/10.1002/chin.201436179
https://doi.org/10.1002/chin.201436179
Publikováno v:
ChemInform. 45
Reaction of the title carbonitriles (I) with NaN3 in hot DMF results in the formation of substituted 2H-1,2,3-triazoles (II).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23556bd9f8167cdcf413ba1e853dcd6b
https://doi.org/10.1002/chin.201420168
https://doi.org/10.1002/chin.201420168
Autor:
D. V. Steglenko, A. S. Tyaglivy, Alexander F. Pozharskii, Julia I. Nelina-Nemtseva, Anna V. Gulevskaya
Publikováno v:
Organic letters. 16(6)
It has been shown that contrary to the literature data the tandem cyclization of (Z)-1-aryl-3-hexen-1,5-diynes promoted by sodium azide results in the formation of the corresponding [1,2,3]triazolo[1,5-a]pyridines, not 1H-benzotriazole derivatives. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c6697ceb376a4d076a9ea875e0ee942
https://pubmed.ncbi.nlm.nih.gov/24593161
https://pubmed.ncbi.nlm.nih.gov/24593161
Publikováno v:
ChemInform. 45
Treatment of easily prepared 3-alkynylquinoxaline-2-carbonitriles with an alkylamine or ammonia is shown to produce either directly previously unknown pyrido[3,4-b]quinoxalin-1(2H)-imines or pyrido[3,4-b]quinoxalin-1-amines via stable enamines like (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe64d2f049b5d6381854e6762f4fb3f1
https://doi.org/10.1002/chin.201411183
https://doi.org/10.1002/chin.201411183
Autor:
Anna V. Gulevskaya, A. S. Tyaglivy
Publikováno v:
ChemInform. 43
In this review, data on the heterocyclization of enediynes, initiated by attack of an external anionic nucleophile or a nucleophilic group present in the molecule at the C ≡ C bond of the enediyne, are summarized.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70154cc589d9e20b460a7f4870b4c420
https://doi.org/10.1002/chin.201233249
https://doi.org/10.1002/chin.201233249