Synthesis and structure of 1- tert -butyl-substituted 3(5)-alkylpyrazoles from 2-chlorovinyl ketones
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| 024 | 7 | 0 | |a 10.1134/S1070428015020177 |2 doi |
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| 245 | 0 | 0 | |a Synthesis and structure of 1- tert -butyl-substituted 3(5)-alkylpyrazoles from 2-chlorovinyl ketones |h [Elektronische Daten] |c [V. Kobelevskaya, L. Larina, A. Popov, E. Rudyakova, G. Levkovskaya] |
| 520 | 3 | |a Reactions of alkyl, halomethyl 2-chlorovinyl ketones with tert-butylhydrazine in the presence of triethylamine afford unsymmetrical 1-(tert-butyl)-3- and -5-disubstituted pyrazoles. The reaction direction is governed by the ketone ability of the nucleophilic substitution of chlorine and of the dehydrochlorination leading to acetylene ketones. 2-Chlorovinyl ketones react with tert-butylhydrazine along two routes giving mixtures of 1-(tert-butyl)-3- and -5-alkylpyrazoles. The content of 3-alkyl-1-(tert-butyl)pyrazole in the formed isomers mixture grows up to 73% with growing length of the alkyl chain of the ketone and up to 87 and 94% at introducing halogen atom in the alkyl fragment of the chloroenone. | |
| 540 | |a Pleiades Publishing, Ltd., 2015 | ||
| 700 | 1 | |a Kobelevskaya |D V. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | |
| 700 | 1 | |a Larina |D L. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | |
| 700 | 1 | |a Popov |D A. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | |
| 700 | 1 | |a Rudyakova |D E. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | |
| 700 | 1 | |a Levkovskaya |D G. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | |
| 773 | 0 | |t Russian Journal of Organic Chemistry |d Pleiades Publishing |g 51/2(2015-02-01), 231-239 |x 1070-4280 |q 51:2<231 |1 2015 |2 51 |o 11178 | |
| 856 | 4 | 0 | |u https://doi.org/10.1134/S1070428015020177 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1134/S1070428015020177 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Kobelevskaya |D V. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Larina |D L. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Popov |D A. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Rudyakova |D E. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Levkovskaya |D G. |u Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, ul. Favorskogo 1, 664033, Irkutsk, Russia |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Russian Journal of Organic Chemistry |d Pleiades Publishing |g 51/2(2015-02-01), 231-239 |x 1070-4280 |q 51:2<231 |1 2015 |2 51 |o 11178 | ||