F 94 From 1,2,4-triazines towards Substituted pyridines and their cyclometalled Pt complexes [Electronic resource] / V. N. Kozhevnikov, M. M. Ustinova, P. A. Slepukhin, D. N. Kozhevnikov, Amedeo Santoro, W. Dunkan // Tetrahedron Letters. - 2008. - Vol. 49, № 26. - P4096-4098 : рис. - Библиогр. : с. 4098 (28 назв.) . - ISSN 0040-4039 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A new, efficient methodology for the synthesis of substituted thienylpyridines includes the synthesis of 3-thienyl-1,2,4-triazines using simple heterocyclisation followed by easy transformation of the triazine ring to a pyridine through an aza Diels–Alder approach. A variety of substituted pyridines can be easily achieved using cheap, commercially available reagents such as bromoacetylarenes, aroyl hydrazides, norbornadiene, and enamines in various combinations. New thienylpyridines form phosphorescent cyclometallated Pt complexes.?? \\\\Expert2\\nbo\\Tetrahedron Letters\\2008, v. 49, p.4096.pdf |
F 70 Fluoro-containing heterocycles: XIV. Cyclic adducts of 6-fluoro-7-azidoquinoxaline and their transformation products [Electronic resource] / N. N. Mochul`skaya, E. N. Nagibina, Yu. S. Volchenkova, L. P. Sidorova, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 11. - P1694-1701. - Библиогр. : с. 1701 (18 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The possibility of a structural modification of quinoxalines through 1,3-dipolar cycloaddition of 7-azido-6-fluoroquinoxaline to norbornenes, enamines of cyclic ketones, and dimethyl acetylenedicarboxylate was demonstarated. The stability of 1,2,3-triazoline adducts was studied and the structure of the products of their molecular rearrangements was established. The cycloadduct of azide with cyclohexanone enamine undergoes azapinacolone rearrangement involving a contruction of the cycloalkane ring by one member affording amidine of cyclopentanecarboxylic acid. The triazoline adduct of the azide with dicyclopentadiene as a result of the rearrangement affords the corresponding aziridinoquinoxaline. \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2005, 41 (11), 1694.pdf |
A 10 A versatile strategy for the synthesis of functionalized 2,2 '-bi- and 2,2 ': 6 ',2 '-terpyridines via their 1,2,4-triazine analogues [Text] / V. N. Kozhevnikov, D. N. Kozhevnikov, T. V. Nikitina, V. L. Rusinov, O. N. Chupakhin, M. Zabel, B. Konig // Journal of Organic Chemistry. - 2003. - Vol. 68, № 7. - P2882-2888 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ALDEHYDES -- OXIDATION -- SUBSTITUTION REACTIONS Аннотация: A general synthetic route for the synthesis of functionalized bi- and terpyridines is reported. Functionalized 1,2,4-triazene 4-oxides 7 and 8 - obtained from the reaction of hydrazones 1 with pyridine aldehydes and followed by oxidation - are functionalized by introduction of a cyano group via nucleophilic aromatic substitution. The thus-obtained 5-cyano-1,2,4-triazines 9 and 10 undergo facile inverse-electron-demand Diels-Alder reactions with enamines and alkenes to yield functionalized bi- and terpyridines, respectively. The substituent at position 6 of the 1,2,4-triazene 4-oxides must be aromatic or heteroaromatic in order to allow their facile synthesis, but other substituents and reagents may vary. Each step of the synthetic route allows diversification, which makes the approach particularly useful for the facile synthesis of a large variety of functionalized bi- and terpyridines. \\\\Expert2\\nbo\\Journal of Organic Chemistry\\2003, v.68, N 7, p.2882. Chupakhin.pdf |
R 30 Reaction of pentafluorobenzoylpyruvic acid with amines [Electronic resource] / V. I. Saloutin, I. T. Bazyl, Z. E. Skryabina, P. N. Kondrat'ev, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1994. - Vol. 43, № 2. - P279-282 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CYCLIZATION -- INTRAMOLECULAR CYCLIZATION -- PRIMARY AMINES -- PENTAFLUOROBENZOYLPYRUVIC ACID Аннотация: Reactions of pentafluorobenzoylpyruvic acid with amines afford the respective enamines. The intramolecular cyclization of the latter results in N-substituted 4-quinolone-2-carboxylic acids. Ammonia and triethylamine favor the cyclization of pentafluorobenzoylpyruvic acid to 2-carboxychromone. \\\\Expert2\\nbo\\Russian Chemical Bulletin\\1994, 43 (2), 279.pdf |
Z 99 [4+2]-Cycloaddition of 3,6-bis(3,5-dimethyl-4-R-pyrazol-1-yl)-1,2,4,5-tetrazines with alkenes [Electronic resource] / G. L. Rusinov, R. I. Ishmetova, N. I. Latosh, I. N. Ganebnuikh, O. N. Chupakhin, V. A. Potemkin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2000. - Vol. 49, № 2. - P355-362 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A number of 1,4-dihydropyridazines and pyridazines were prepared by the Diels-Alder reaction with an inverse electron demand from cyclic heterodiene systems, 3,6-bis(3,5-dimethyl-4-R-pyrazol-1-yl)-1,2,4,5-tetrazines, and some enamines as well as from 4-vinylpyridine, butyl vinyl ether, phenylacetylene, and acrylamide. The reaction of 3,6-bis(3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazine with styrene afforded 4,5-dihydropyridazine, which was readily oxidized by atmospheric oxygen to form the corresponding pyridazine. Electron-withdrawing substituents (Br or Cl) in the pyrazole rings accelerate [4+2]-cycloaddition. When heated, 1,4-dihydropyridazines, which were synthesized from tetrazines and enamines, eliminated amine to give pyridazines. The reactivities of tetrazines were evaluated by quantum-chemical methods. \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2000, 49 (2), 355.pdf |
U 52 Unexpected products in the reactions of s-tetrazine hydrazones with enamines [Text] / G. L. Rusinov, R. I. Ishmetova, I. N. Ganebnuikh, O. N. Chupakhin, G. G. Aleksandrov, I. A. Litvinov, D. B. Krivolapov // Heterocyclic communications. - 2003. - Vol. 9, № 1. - P39-44 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: For the first time in the reactions of some 1,2,4,5-tetrazine hydrazones with enamines in addition to the expected products of Carbony-Lindsey reaction the unusual addition and cyclization products at cyclic and exocyclic nitrogen atom of tetrazine ring have been isolated. |
N 52 New enamine ligands derived from ethyl 2-ethoxymethylidene-3-oxo-3-polyfluoroalkylpropionates and omega-phenylenediamine [Electronic resource] / Yu. S. Kudyakova, M. V. Goryaeva, Ya. V. Burgart, P. A. Slepukhin, V. I. Saloutin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 8. - P1582-1593 : рис., табл. - Bibliogr. : p. 1593 (26 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): BETA-KETO ACIDS -- OMEGA-PHENYLENEDIAMINE -- ENAMINES -- LIGANDS -- COPPER(ii) COMPLEXES -- NICKEL(ii) COMPLEXES -- COBALT(ii) COMPLEXES -- ORGANOFLUORINE COMPOUNDS Аннотация: Diethyl 2,2' [1,2-phenylenebis(aminomethylidene)]bis(3-oxo-3-polyfluoroalkylpropionates) were synthesized by the condensation of a double excess of ethyl 2-ethoxymethylidene- 3-oxo-3-polyfluoroalkylpropionates with o-phenylenediamine. The use of equimolar ratios of the starting reactants affords ethyl 2-[(2-aminophenyl)aminomethylidene]-3-oxo- 3-polyfluoroalkylpropionates from which nonsymmetric biscondensation products were synthesized by the reaction with related reactants containing different polyfluoroalkyl substituent. The copper(II), nickel(II), and cobalt(II) complexes were obtained on the basis of new ligands. \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (8), 1582-1593.pdf |
U 62 Unusual ring-chain tautomerism in bicyclo[4.2.0]octane derivatives [Text] / V. Yu. Korotaev, A. Yu. Barkov, P. A. Slepukhin, M. I. Kodess, V. Ya. Sosnovskikh // Tetrahedron Letters. - 2011. - Vol. 52, № 23. - P3029-3032 : рис. Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A new type of ring-chain tautomerism, which consists of the reversible conversion of bicyclo[4.2.0]octane derivatives into trisubstituted enamines was found and studied by 1H NMR spectroscopy. The starting materials were prepared by the stereoselective reaction of (E)-3,3,3-trichloro-1-nitropropene with cyclohexanone enamines \\\\Expert2\\nbo\\Tetrahedron Letters\\2011, v. 52, p. 3029.pdf |
D 53 Diastereoselective reactions of 1,1,1-trichloro(trifluoro)-3-nitrobut-2-enes with 2-morpholinoalk-1-enes [Electronic resource] / V. Yu. Korotaev, A. Yu. Barkov, P. A. Slepukhin, M. I. Kodess, V. Ya. Sosnovskikh // Mendeleev Communications. - 2011. - Vol. 21, № 2. - P112-114. - Bibliogr. : p. 114 (12 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Reactions of (E)-1,1,1-trichloro(trifluoro)-3-nitrobut-2-enes with 3,3-dimethyl-2-morpholinobutene in benzene give (4R*,6R*)-6-tert-butyl-3-methyl-6-morpholino-4-trihalomethyl-5,6-dihydro-4H-1,2-oxazine 2-oxides. In a dichloromethane solution, these cyclic nitronates undergo diastereoselective ring opening to produce nitroalkylated anti-CCl3- and syn-CF3-enamines, which are hydrolysed with dilute HCl to afford the respective anti-CCl3- and syn-CF3-g-nitroketones \\\\Expert2\\nbo\\Mendeleev Communications\\2011, v.21, p.112.pdf |
U 50 Uncatalyzed reactions of alfa-(trihaloethylidene)nitroalkanes with push-pull enamines: a new type of ring-ring tautomerism in cyclobutane derivatives and the dramatic effect of the trihalomethyl group on the reaction pathway [Text] / V. Yu. Korotaev, A. Yu. Barkov, P. A. Slepukhin, M. I. Kodess, V. Ya. Sosnovskikh // Tetrahedron Letters. - 2011. - In Press, Accepted Manuscript, 30 august 2011. - P1-15. - Bibliogr. : p. 10-12 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A new type of ring-ring isomerism, which consists of the reversible transformation of cyclobutane derivatives into substituted 1,2-oxazine N-oxides was found and studied by NMR spectroscopy and X-ray diffraction analysis. The starting materials were prepared by the stereoselective reaction of ?-(trifluoroethylidene)nitroalkanes, which react with ethyl ?-morpholino- and ?-piperidinocrotonates at the more nucleophilic ?-position, whereas the reaction of ?-(trichloroethylidene)nitroalkanes proceeds at the ?-methyl group to give the corresponding linear products \\\\Expert2\\nbo\\Tetrahedron Letters\\2011, In Press, Acc. Man. 30 aug.pdf |
R 30 Reactions of 3,3,3-trichloro(trifluoro)-1-nitropropenes with 2-morpholinoalk-1-enes [Electronic resource] / V. Yu. Korotaev, A. Yu. Barkov, P. A. Slepukhin, V. Ya. Sosnovskikh // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol. 60, № 1. - P143-147. - Bibliogr. : p. 146-147 (25 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The reaction of 3,3,3-trichloro(trifluoro)-1-nitropropenes with 2-morpholinoalk-1-enes affords the nitroalkylated Z-enamines whose subsequent hydrolysis results in 2-trihalomethyl-1-nitroalkan-4-ones \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (1), 143-147.pdf |
S 78 Spirocyclohexadienones: XIII. Reactions of schiff bases with enamines derived from 3,4-dihydroisoquinoline and with spiro[naphthalene-1,3′-pyrrol]-4-one / V. A. Glushkov, G. F. Krainova, O. A. Maiorova, V. I. Karmanov, A. A. Gorbunov, P. A. Slepukhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2012. - Vol.48, №4. - С. 575-581 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SPIROCYCLOHEXADIENONE -- ENAMINES -- DIHYDROISOQUINOLINES Аннотация: Addition of 1,3,3-trimethyl-3,4-dihydroisoquinolines to N-benzylideneanilines gives substituted N-[2-(3,3-dimethyl-3,4-dihydroisoquinolin-1-yl)-1-phenylethyl]anilines, whereas 2′,5′,5′-trimethyl-4′,5′-dihydro-4H-spiro[naphthalene-1,3′-pyrrol]-4-one reacts with N-benzylideneanilines along two pathways involving cyclization to substituted 2,3,3a,4,10,11-hexahydrobenzo[f]pyrrolo[2,3-d]quinolin-5(1H)-ones or elimination of the aniline residue with formation of substituted 5′,5′-trimethyl-2-styryl-4′,5′-dihydro-4H-spiro[naphthalene-1,3′-pyrrol]-4-ones \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2012, 48 (4), 575-581.pdf |
S 78 Spiroheterocyclization of methyl 1-Aryl-3-cinnamoyl-4,5-dioxo-4,5-dihydro- 1H-pyrrole-2-carboxylates by the action of 3-(Arylamino)-1H-inden-1-ones [Электронный ресурс] / P. S. Silaichev, V. O. Filimonov, P. A. Slepukhin, A. N. Maslivets // Molecules. - 2012. - Vol.17, №12. - P13787-13794 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ENAMINES -- PYRROLE-2,3-DIONES -- SPIRO[INDENO[1,2-b]PYRROLE-3,2'-PYRROLES] Аннотация: Methyl 1-Aryl-3-cinnamoyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates interact with 3-(arylamino)-1H-inden-1-ones to give the corresponding 1,1'-diaryl-3'- cinnamoyl-4'-hydroxy-1H-spiro[indeno[1,2-b]pyrrole-3,2'-pyrrole] -2,4,5'(1'H)-triones in good yields. |
R 30 Reactions of 1,1,1trihalo-3-nitrobut-2-enes with enamines derived [Electronic resource] / V. Yu. Korotaev, A. Yu. Barkov, P. A. Slepukhin, V. Ya. Sosnovskikh // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2012. - Vol.61, №9. - С. 1750-1760. - Bibliogr. : p. 1760 (30 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 1,1,1TRIHALO-3NITROBUT-2ENES -- ENAMINES -- X-RAY DIFFRACTION Аннотация: 1,2 Oxazine Noxides derived from (E)1,1,1trifluoro3nitrobut2ene and cyclohexanone enamines underwent spontaneous rearrangement with ring contraction to give 1pyrroline N oxides. Reactions of (E) 1,1,1 trifluoro(trichloro) 3 nitrobut 2 enes with N cyclopent enylmorpholine resulted in a series of novel CX3 containing nitroalkyl enamines and g nitro ketones; the stereochemistry of the synthesized compounds were studied by NMR spectroscopy and X ray diffraction \\\\expert2\\NBO\\Russian Chemical Bulletin\\2012, 61 (9), 1750-1760.pdf |
S 45 Self condensation of enamines mediated by acetylation. A novel approach to 1-(azol-5-yl)-(1E,3Z)-butadiene-4-N,N-dimethylamines / Yu. Shafran, Yu. A. Rozin, T. Beryozkina, S. Zhidovinov, O. S. Eltsov, J. O. Subbotina, J. Leban, R. K. Novikova, V. A. Bakulev // Organic and Biomolecular Chemistry. - 2012. - Vol.10. - С. 5795-5798. - Bibliogr. : p. 5798 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ENAMINES -- 1,3-DIENES -- STEREOSELECTIVE SYNTHESIS Аннотация: Novel self-condensation of 3-(azol-5-yl)-1,1-dimethylenamines has been found to form new C–C bonds leading to 2,4- (1,2,3-triazole-1,2,3-thiadiazole-3-phenylisothiazole)-(1E,3Z)- 5-yl-butadiene-1-amines. The discovered reaction represents a new example of C–H functionalization in unsaturated systems and can serve an efficient synthetic approach to rational design of new 2,4-(diazole-5-yl)-dieneamines \\\\expert2\\NBO\\Organic and Biomolecular Chemistry\\2012, v. 10, p.5795.pdf |
S 98 Synthesis of chromeno[3,4-c][1,2]oxazine-N-oxides via formal [4+2] cycloaddition of 3-nitro-2-trihalomethyl-2H-chromenes with cyclohexanone and pinacolone enamines [Electronic resource] / V. Yu. Korotaev, A. Yu. Barkov, E. G. Matochkina, M. I. Kodess, V. Ya. Sosnovskikh // Tetrahedron. - 2014. - Vol.70, №34. - С. 5161-5167. - Bibliogr. : p. 5166-5167 (42 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 2,3,4-TRISUBSTITUTED CHROMANES -- 3-NITRO-2-TRIHALOMETHYL-2H-CHROMENES -- CYCLIC NITRONATES Аннотация: 3-Nitro-2-trichloro(trifluoro)methyl-2H-chromenes undergo a formal [4+2] cycloaddition reaction to cyclohexanone and pinacolone enamines, producing chromeno[3,4-c][1,2]benzoxazin-6-oxides with high diastereoselectivity and in good yields. In addition, some novel 2,3,4-trisubstituted chromanes were obtained. The stereochemistry of the products was established based on a 2D NOESY experiment and an X-ray diffraction study \\\\expert2\\nbo\\Tetrahedron\\2014, v. 70 (34), p. 5161.pdf |
S 45 Self-condensation of β-(isoxazol-5-yl) enamines under treatment with acetyl chloride and acids. Synthesis of novel 1,3-diisoxazolyl-1,3-dieneamines and 1,3,5-triisoxazolyl benzenes [Electronic resource] / T. Beryozkina, S. Zhidovinov, Yu. Shafran, O. S. Eltsov, P. A. Slepukhin // Tetrahedron. - 2014. - Vol.70, №25. - С. 3915-3923. - Bibliogr. : p. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 1,3,5-TRIISOXAZOLYL BENZENES -- DIENEAMINES -- ENAMINES Аннотация: Two directions for self-condensation of β-(isoxazol-5-yl) enamines under treatment with either acetyl chloride or acids were found leading to new 1,3-diisoxazolyl-1,3-dieneamines and 1,3,5-triisoxazolyl benzenes. The effect of solvent, acid, temperature and the reaction time on the ratio of reaction products were investigated. Trans-E-cis configuration of prepared 1,3-diisoxazolyl-1,3-dieneamines was unambiguously confirmed by 2D NMR spectra and X-ray analysis. A new mechanism of 1,3-diisoxazolyl-1,3-dieneamines formation was prop \\\\expert2\\nbo\\Tetrahedron\\2014, v. 70 (25), p. 3915.pdf |
R 30 Reactions of β-azolylenamines with sulfonyl azides as an approach to N-unsubstituted 1,2,3-triazoles and ethene-1,2-diamines [Electronic resource] / I. Efimov, V. A. Bakulev, N. Beliaev, M. A. Ezhikova, W. Dehaen, P. A. Slepukhin // European Journal of Organic Chemistry. - 2014. - Vol. 2014, №17. - С. 3684-3689. - Bibliogr. : p. 3689 (49 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): AZIDES -- CYCLOADDITION -- NITROGEN HETEROCYCLES Аннотация: The reactions of β-azolylenamines 1 with sulfonyl azides 2 in acetonitrile furnished 1H-4-(azol-5-yl)-1,2,3-triazoles 3 in yields of 52-93%. β-Benzoylenaminones and β-nitroenamine of type 1 also reacted with tosyl azide to form the same type of products 3, proving the generality and efficiency of the method for the synthesis of N-unsubstituted 1,2,3-triazoles. On the other hand, the reactions of 3-(1-aryl-1,2,3-triazol-5-yl)enamines with tosyl azide in the absence of a solvent afforded a mixture of (E)-1-dimethylamino-2-tosylaminoethenes 5 and N,N-dimethyl-N′- tosylformamidine 6 in yields of 40-50 and 20%, respectively. The formation of a variety of compounds from the reactions of enamines 1 with sulfonyl azides 2 is rationalized by the various possible transformations of the intermediate 5-dimethylamino-1,2,3-triazolines \\\\expert2\\nbo\\European Journal of Organic Chemistry\\2014, № 17. p.3684.pdf |
A 10 A catalyst and additive-free three-component reaction of highly electrophilic azides with cyclic ketones and cycloaliphatic amines. Synthesis of novel N-heteroaryl amidines [Electronic resource] / I. Efimov, N. Beliaev, T. Beryozkina, P. A. Slepukhin, V. A. Bakulev // Tetrahedron Letters. - 2016. - Vol. 57, № 18. - С. 1949-1952 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SULFONYL AMIDINES; -- KETENE N,X-ACETALS -- CYCLOADDITION REACTIONS Аннотация: Highly electrophilic 5-azido-1-methyl-4-nitro-1H-imidazole and sulfonyl azides were demonstrated to react with alicyclic amines and cyclic ketones in the absence of any catalyst or additive to afford novel N-(4-nitroimidazol-5-yl)- or N-sulfonylamidines respectively. Based on single crystal X-ray analysis, a revision of the previously reported data of Gao and co-workers on the direction of the reaction of sulfonyl azides with endocyclic enamines was made. The reaction of 2,6-diazidopyridine with an enamine, 4-(cyclohex-1-en-l-yl)morpholine, proceeded with cyclization of the azide moiety onto the pyridine C=N bond to form an amidine bearing the tetrazolo[1,5-a]pyridine fragment. \\\\expert2\\NBO\\Tetrahedron Letters\\2016, v. 57, p. 1949.pdf |
A 10 A novel transformation of b-1,2,3-thiadiazol-5-yl enamines into thieno[2,3-d]pyridazines / Yu. Rozin, S. Zhidovinov, T. Beryozkina, Yu. Shafran, G. Lubec, O. S. Eltsov, P. A. Slepukhin, W. Dehaen, V. A. Bakulev // Tetrahedron Letters. - 2015. - Vol. 56. - С. 1545-1547 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): B-1,2,3-THIADIAZOL-5-YL ENAMINES -- ENAMINES -- PYRIDAZINES \\\\expert2\\NBO\\Tetrahedron Letters\\2015, v. 56, p. 1545.pdf |