Asymmetric induction in the reactions of azinones with C-nucleophiles
作者:O. N. Chupakhin、I. N. Egorov、V. L. Rusinov、P. A. Slepukhin
DOI:10.1007/s11172-010-0195-z
日期:2010.5
acylating agents on the course of addition of C-nucleophiles to 1,2,4- and 1,3,5-triazinones, as well as to quinoxalin-2(1H)-one, was studied. A series of new azinone derivatives was obtained. A method for the preparation of diastereomericallypure addition products of indoles to 1,2,4-triazinones and quinoxalin-2(1H)-one in the presence of N-Ts-L-amino acid acyl chlorides was suggested.
Synthesis of isobornylphenol-containing 3-aryl-1,2,4-triazin-5(4H)-ones
作者:I. N. Egorov、O. N. Chupakhin、M. V. Berezin、G. L. Rusinov、V. L. Rusinov、E. V. Buravlev、I. Yu. Chukicheva、A. V. Kuchinc
DOI:10.1007/s11172-011-0143-6
日期:2011.5
A method for modification of 3-aryl-1,2,4-triazin-5(4H)-ones with isobornylphenols was proposed. The influence of various acylating agents on the reaction pathway was studied.
Atom- and step-economical nucleophilic arylation of azaaromatics via electrochemical oxidative cross C–C coupling reactions
作者:O. N. Chupakhin、A. V. Shchepochkin、V. N. Charushin
DOI:10.1039/c7gc00789b
日期:——
asymmetrical bi(het)aryls through direct functionalization of the C(sp2)–Hbond in azaaromatics with fragments of (hetero)aromatic nucleophiles has first been carried out under electrochemicaloxidative conditions. This versatile method for C–C bond formation between two aryl fragments can be realized under very mild potential-controlled oxidative conditions, and it does require neither incorporation of any
Direct introduction of heterocyclic residues into 1,2,4-triazin-5(2<i>H</i>)ones
作者:Vladimir L. Rusinov、Grigori V. Zyryanov、Tatjana L. Pilicheva、Oleg N. Chupakhin、Hans Neunhoeffer
DOI:10.1002/jhet.5570340347
日期:1997.5
3-Aryl-1,2,4-triazin-5(2H)-ones 1a-c react with indoles 2a-c in trifluoroacetic acid/chloroform or in boiling butanol or acetic acid to give 3-aryl-6-(indolyl-3)-1,6-dihydro-1,2,4-triazin-5(2H)-ones 3a-g. Oxidation of the dihydro-1,2,4-triazin-5(2H)-ones 3a-e afforded 6-(indolyl-3)-1,2,4-triazin-5(2H)-ones 4a-e, products of nucleophilic substitution of hydrogen in 1a-c. Refluxing 1b with N-methylpyrrote
The formation of 1,2,4-triazolylimidazolidine-2,4-diones in reactions of 3-aryl-1,2,4-triazin-5(2H)-ones with alkylureas
作者:D. G. Beresnev、G. L. Rusinov、A. Yu. Ponomareva、O. N. Chupakhin
DOI:10.1023/b:rucb.0000011873.81934.d0
日期:2003.10
Recyclization of the addition products of alkylureas to 3-aryl-1,2,4-triazin-5(2H)-ones affording 1,2,4-triazole derivatives was found to occur in Ac2O.