Zobrazeno 1 - 10
of 18
pro vyhledávání: '"M. F. Kosterina"'
Autor:
Konstantin L. Obydennov, Tatiana V. Glukhareva, Aleksei N. Galushchinskiy, Yuri Yu. Morzherin, M. F. Kosterina
Publikováno v:
Chemistry of Heterocyclic Compounds. 53:622-625
It was shown that 2-(1,3-thiazolidin-2-ylidene)acetamides can be used as 2-enamides in cyclocondensation reactions with oxalyl chloride, leading to the formation of new heterocyclic assemblies – 4-(4-oxo-1,3-thiazolidin-2-ylidene)pyrrolidine-2,3,5-
Autor:
Tetyana Beryozkina, Vasiliy A. Bakulev, M. F. Kosterina, Wim Dehaen, Lidia Dianova, Ilya V. Efimov, Vera S. Berseneva, Oleg S. Eltsov
Publikováno v:
European Journal of Organic Chemistry. 2015:6917-6923
Reactions of functionalized [CN, CO2Et, C(O)NHR, C(S)NR1R2] derivatives of thiomalonic acid and 2-arylthioacetamides with sulfonyl azides were shown to give active-methylene N-sulfonylamidines in 62–98 % yields. Various procedures for the reactions
Autor:
T. A. Pospelova, M. F. Kosterina, Pavel A. Slepukhin, Konstantin L. Obydennov, N. A. Golovko, Yu. Yu. Morzherin
Publikováno v:
Russian Chemical Bulletin. 63:1330-1336
An approach to the synthesis of 2-(4-oxo-3-arylthiazolidine-2,5-diylidene)-N-arylethanethioamide derivatives from N,N′-diarylmalonodithioamides includes two steps: preparation of thiazoles using the Hantzsch reaction with subsequent modification of
Autor:
Oleg S. Eltsov, M. F. Kosterina, Wim Dehaen, Tetyana Beryozkina, Ilya V. Efimov, Vera S. Berseneva, Lidia Dianova, Vasiliy A. Bakulev
Publikováno v:
ChemInform. 47
Different types of thioacetamides are treated with mesyl azide and aryl/heteroaryl sulfonyl azides.
Publikováno v:
Chemistry of Heterocyclic Compounds. 45:422-425
The condensation of p-methoxy(ethoxy)phenylacetothioamides with acetylenedicarboxylic esters leads to two condensation products, 2-(alkoxycarbonylmethylene)-4-(4-methoxy(ethoxy)phenyl)-5-morpho-lino-3H-thiophen-3-ones and 2-(alkoxycarbonylmethylene)-
Autor:
Yu. I. Nein, P. E. Kropotina, M. F. Kosterina, Tatiana V. Glukhareva, E. V. Deeva, Yu. Yu. Morzherin
Publikováno v:
Chemistry of Heterocyclic Compounds. 43:76-81
The synthesis of 2,3,4,4a,5,6-hexahydro-6H-spiro[benzo[c]quinolizine-5,4′-pyrazol]-5′-ones has been achieved by the reaction of 2-piperidinobenzaldehydes with 2-aryl-5-methyl-2,4-dihydropyrazol-3-one via the “tert-amino effect” mechanism.
Autor:
M. F. Kosterina, A. I. Matern, V. S. Berseneva, O. A. Kramarenko, Alexey V. Tkachev, Yu. Yu. Morzherin, Vasiliy A. Bakulev
Publikováno v:
Russian Journal of Organic Chemistry. 40:866-869
Condensation of dimethyl and diethyl acetylenedicarboxylate with thioacetamides gave the corresponding alkyl (3-oxo-2,3-dihydrothiophen-2-ylidene)- and (4-oxothiazolidin-5-ylidene)acetates. Treatment of these compounds with zinc in acetic acid result
Publikováno v:
Russian Chemical Bulletin. 51:1292-1297
The equilibrium concentrations of E- and Z-isomers of thiazolidin-4-ones containing exocyclic double bonds in positions 2 and 5 of the cycle were determined in DMSO-d6. The influence of the nature of the substituents on the equilibrium position was f
Autor:
Tatyana V. Rybalova, Yu. V. Gatilov, Alexey V. Tkachev, M. F. Kosterina, Yu. Yu. Morzherin, V. A. Bakulev
Publikováno v:
Russian Chemical Bulletin. 51:653-658
2-(Alkoxycarbonylmethylidene)-4-aryl-5-(dialkylamino)thiophen-3(2H)-ones were synthesized by condensation of N,N-(dialkyl)arylthioacetamides with dialkyl acetylenedicarboxylates. Intermediate substituted vinylic sulfides were isolated. When heated or
Autor:
Yu. Yu. Morzherin, Vasiliy A. Bakulev, M. F. Kosterina, Konstantin L. Obydennov, Elena L. Klimareva
Publikováno v:
Russian Chemical Bulletin. 60:1016-1018
Reactions of malonothioamides with acetylenedicarboxylates proceed as an addition of the sulfur atom at the triple bond with subsequent intramolecular reaction between the ester group and the nitrogen atom, that leads to substituted thiazolidines. Un