Zobrazeno 1 - 10 of 252 pro vyhledávání: '"K. F. Turchin"'
3
Quality control of teraphthal production. 1. Chemical composition
Autor: M. S. Goizman, A. P. Arzamastsev, E. V. Degterev, K. F. Turchin
Publikováno v: Pharmaceutical Chemistry Journal. 41:670-675
It is shown that the drug teraphthal should be considered as a mixture of the octasodium salt of cobalt(II) 2,3,9,10,16,17,23,24-octacarboxyphthalocyanine (OCPC) and its oxidation product (component A) with the octasodium salt of OCPC and products fr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fc1e7b8bdc7ee772d179c2a11800fcf6
https://doi.org/10.1007/s11094-008-0035-8
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4
Mechanism of dehydration of 2-CH2R-and 2-CHR2-4-hydroxy-Δ2-thiazolines as intermediates in the Hantzsch thiazole synthesis and factors impeding the synthesis of 2-Me-, 2-Ar-, and 2-Het-substituted thiazoles and thiazolo[5,4-b]indoles
Autor: K. A. Lyssenko, Valeriya S. Velezheva, Ivan V. Stankevich, K. F. Turchin, E. G. Gal'pern, A. Yu. Lepeshkin
Publikováno v: Russian Chemical Bulletin. 56:1447-1455
Based on the results of studies of the deuterium exchange and dehydration of 4-hydroxy-Δ2-thiazolines and 2-R-4-acetyl-8b-hydroxy-3a,8b-dihydro-4H-thiazolo[5,4-b]indoles containing the α-methylene (methine) unit at the C(2) atom, the mechanism of d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c13291d081dbf15bd235f27233b57408
https://doi.org/10.1007/s11172-007-0220-z
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5
Influence of the structures of α-halo ketones and thioamides on the Hantzsch synthesis of thiazoles and thiazolo[5,4-b]indoles. A new approach to 4-acetyl-2-methyl-4H-thiazolo[5,4-b]indole
Autor: K. F. Turchin, A. L. Sedov, Valeriya S. Velezheva, A. Yu. Lepeshkin
Publikováno v: Russian Chemical Bulletin. 56:1441-1446
In reactions with some α-halo ketones (3-bromo-1,1,1-trifluoropropan-2-one, 1-acetyl-2-bromoindolin-3-one, and α-bromoacetophenone), thioacetamide and a series of thioamides of aromatic and heteroaromatic acids are transformed into 4-hydroxy-Δ2-th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac5340490674ddc7754dd51088514b54
https://doi.org/10.1007/s11172-007-0219-5
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6
Identification and Analysis of γ-Aminobutyric Acid in Culture Media of Producing Strains
Autor: K. F. Turchin, E. V. Degterev, A. E. Novikova, M. G. Lunts, O. S. Anisimova, S. A. Fomina
Publikováno v: Pharmaceutical Chemistry Journal. 39:216-221
A new modification of the accq-tag-HPLC technique for the rapid determination of L-proline and γ-aminobutyric acid (GABA) in a culture medium is proposed. The concentration of L-isoleucine added to the culture medium is shown to influence the accumu
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49bd0c26d997c8ef87c6c4b4114ceb61
https://doi.org/10.1007/s11094-005-0120-1
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7
New synthetic approach to substituted isoindolo[2,1-a]quinoline carboxylic acids via intramolecular Diels–Alder reaction of 4-(N-furyl-2)-4-arylaminobutenes-1 with maleic anhydride
Autor: Fedor I. Zubkov, K. F. Turchin, Alexey V. Varlamov, Roman S. Borisov, Ekaterina V. Boltukhina
Publikováno v: Tetrahedron. 61:4099-4113
Acylation of substituted 4-(furyl-2)-4-arylaminobut-1-enes with maleic anhydride provided 2-allyl-6-carboxy-4-oxo-3-aza-10-oxatricyclo[5.2.1.01,5]dec-8-enes in high yield under mild reaction conditions. The Diels–Alder adducts are formed via an ini
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70edac3d3c7507c82b9643bd1bdeb284
https://doi.org/10.1016/j.tet.2005.02.017
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8
An efficient approach to isoindolo[2,1-b][2]benzazepines via intramolecular [4+2] cycloaddition of maleic anhydride to 4-α-furyl-4-N-benzylaminobut-1-enes
Autor: K. F. Turchin, Alexey V. Varlamov, Fedor I. Zubkov, Ekaterina V. Boltukhina
Publikováno v: Tetrahedron. 60:8455-8463
Acylation of 4-α-furyl-4- N -benzylaminobut-1-enes with maleic anhydride gave 4-oxo-3-aza-10-oxatricyclo[5.2.1.0 1,5 ]dec-8-ene-6-carboxylic acid via amide formation followed by intramolecular Diels–Alder reaction of furan (IMDAF). The cycloadditi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::baacd810327f861a75d52a0226800c26
https://doi.org/10.1016/j.tet.2004.07.008
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9
Substituted and Spiro-annelated Perhydro-1,2,3-oxathiazine 2,2-Dioxides and 1-Benzyl-4-methylazetidines
Autor: K. F. Turchin, Fedor I. Zubkov, A. I. Chernyshev, Alexey V. Varlamov, N. V. Sidorenko
Publikováno v: Chemistry of Heterocyclic Compounds. 40:1097-1105
We obtained perhydro-1,2,3-oxathiazine 2,2-dioxides by cyclization of 4-N-benzylamino-4-tetramethylene(phenyl-, methylphenyl-, dimethyl)but-1-enes in conc. H2SO4 at 25°C. When treated with an alcoholic solution of base, the oxathiazines are converte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2fcb9b9112fd34fbae433d5c505a4182
https://doi.org/10.1023/b:cohc.0000046704.43034.bd
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10
Intramolecular Diels—Alder reaction of 4-(N-furfuryl)aminobut-1-enes. New approach to the synthesis of 6,8a-epoxyoctahydroisoquinoline (3-aza-11-oxatricyclo[6.2.1.01,6]undec-9-ene) derivatives
Autor: Alexey V. Varlamov, K. F. Turchin, Roman S. Borisov, A. A. Safronova, Fedor I. Zubkov, Eugeniya V. Nikitina
Publikováno v: Russian Chemical Bulletin. 53:860-872
The intramolecular Diels—Alder reaction of readily accessible 4-substituted 4-(N-furfuryl)aminobut-1-enes was studied and a new one-step method was developed for the synthesis of 6,8a-epoxy-1,2,3,4,4a,5,6,8a-octahydroisoquinoline (3-aza-11-oxatricy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::516c0676030da68bc9129bffcfc7164b
https://doi.org/10.1023/b:rucb.0000037856.61928.c4
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