Zobrazeno 1 - 10
of 110
pro vyhledávání: '"V. O. Koz'minykh"'
Autor:
Anastasia Gorbunova, O. S. El’tsov, P. P. Mukovoz, A. V. Kuzmin, V. O. Koz’minykh, Pavel A. Slepukhin, I. N. Ganebnykh
Publikováno v:
Russian Journal of General Chemistry. 86:2427-2436
The two-step method of synthesis of 1,3,4,6-tetraoxocompounds with different terminal substituents is developed. By condensation of alkyl methyl ketones with dimethyl oxalate new 1,6-dialkyl-substituted 1,3,4,6-tetraoxohexanes are obtained. The ester
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a541fb1663bf856948dd2d20b71341b
https://doi.org/10.1134/s1070363216110050
https://doi.org/10.1134/s1070363216110050
Autor:
P. P. Mukovoz, V. O. Koz’minykh, V. A. Andreeva, I. N. Ganebnykh, O. S. El’tsov, E. N. Koz'minykh
Publikováno v:
Russian Journal of Organic Chemistry. 52:1-4
Three-component condensation of dialkyl oxalates with alkyl acetates and alkyl methyl ketones in the presence of bases afforded 1-alkoxy(or 1,6-dialkoxy)-1,6-dioxoalka-2,4-diene-3,4-diolates. The product structure was discussed on the basis of their
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35e83556691ef837fbbbbaa0e713ed1a
https://doi.org/10.1134/s1070428016010012
https://doi.org/10.1134/s1070428016010012
Autor:
Pavel A. Slepukhin, O. S. El’tsov, V. O. Koz’minykh, E. N. Koz'minykh, V. A. Andreeva, P. P. Mukovoz, I. N. Ganebnykh
Publikováno v:
Russian Journal of General Chemistry. 85:2715-2720
Three-component reactions of 3,4-dihydroxy-6-oxo-2,4-alkadienoic acids with acetone and p-toluidine were studied; their specific feature was the formation of the regioisomeric esters of 4-hydroxy-2,2-dimethyl-1-(4-methylphenyl)-5-(2-oxoalkyliden)-2,5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c36541122996e5b10a4524720c1d855f
https://doi.org/10.1134/s1070363215120087
https://doi.org/10.1134/s1070363215120087
Publikováno v:
Russian Journal of Organic Chemistry. 51:1453-1456
Dialkyl 3,4-dioxohexanedioates react with 2-aminophenols to give (2′Z)-2,2′-(2-hydroxy-2H-1,4-benzoxazin-2-yl-3-ylidene)diacetic acid esters. The product structure is discussed on the basis of the IR and 1H NMR spectral data.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b8e9e21bda661d907af96d6453e3adf
https://doi.org/10.1134/s1070428015100176
https://doi.org/10.1134/s1070428015100176
Publikováno v:
Russian Journal of General Chemistry. 85:1386-1390
Methyl [(3Z)-2-hydroxy-3-(2-oxoalkylidene)-3,4-dihydro-2H-1,4-benzoxazin-2-yl]acetates were prepared by reacting methyl 3,4-dihydroxy-6-oxo-2,4-alkadienoates with 2-aminophenol.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9238e0683d587bd05d09406a1fd0e83
https://doi.org/10.1134/s1070363215060055
https://doi.org/10.1134/s1070363215060055
Autor:
O. S. El’tsov, E. N. Koz'minykh, Pavel A. Slepukhin, P. P. Mukovoz, V. A. Andreeva, V. O. Koz’minykh
Publikováno v:
Russian Journal of Organic Chemistry. 51:860-863
A procedure has been developed for the synthesis of dialkyl (5E)-5-(2-alkoxy-2-oxoethylidene)-4-hydroxy-2,2-dimethyl-1-(4-methylphenyl)-2,5-dihydro-1H-pyrrole-3-carboxylates by three-component condensation of dialkyl 3,4-dihydroxyhexa-2,4-dienedioate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c5ed91963ad66e728b8c171c6746356
https://doi.org/10.1134/s107042801506007x
https://doi.org/10.1134/s107042801506007x
Publikováno v:
Russian Journal of Organic Chemistry. 51:14-21
2,6,7-Trihydroxy-4,9-dioxodeca-2,5,7-trienoic acid esters and the corresponding sodium enolates were synthesized by condensation of acetone with dialkyl oxalates, and their structure was determined on the basis of IR, UV, and 1H NMR spectral data.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c69ec743b7fa5b3007e86cfeed5d5e83
https://doi.org/10.1134/s1070428015010030
https://doi.org/10.1134/s1070428015010030
Publikováno v:
Russian Journal of Organic Chemistry. 43:1508-1511
2-(2-Oxo-1,2-dihydro-3H-indol-3-ylidene)acetic acids esters reacted with phenylhydrazine yielding products of the regioselective addition of the latter in the α-(C2)-position of the exo ethylene bond, (2-oxo-2,3-dihydro-1H-indol-3-yl)(2-phenylhydraz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41de2ca12fe79465bbd7823ed73841ef
https://doi.org/10.1134/s107042800710017x
https://doi.org/10.1134/s107042800710017x
Publikováno v:
Russian Journal of Organic Chemistry. 42:1715-1718
A simple preparative procedure was developed for 3-(2-oxoalkylidene)-3,4-dihydroquinoxalin-2(1H)-ones, 4,5-dihydroxy-1-[3-oxo-3,4-dihydroquinoxalin-2(1H)-ylidene]-3,5-octadiene-2,7-dione, and 3-(2,3-dihydroxy-4-methyl-5-oxo-1,3-cyclopentadien-1-yl)qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffec9884383b02a86176e62dae9167d3
https://doi.org/10.1134/s1070428006110194
https://doi.org/10.1134/s1070428006110194
Publikováno v:
Journal of Structural Chemistry. 54:186-188
As a result of one-pot three-component condensation of acetone with diethyl oxalate and p-tolyl diazonium chloride of ethyl 3-(4-tolyl)hydrazono-2,4-dioxopentanoates p-tolyl diazonium diethyloxalate and chloride, ethyl ether of 3-(4-tolyl)hydrazono-2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::391e18159152d2e1fcd9556303b5401d
https://doi.org/10.1134/s0022476613010290
https://doi.org/10.1134/s0022476613010290