Zobrazeno 1 - 10
of 133
pro vyhledávání: '"V. D. Shteingarts"'
Publikováno v:
Russian Chemical Bulletin. 65:2430-2436
The main products of the reaction of terephthalonitrile dianion disodium salt with ω-X-alkyl bromides (2-(2-bromoethyl)-1,3-dioxane, 5-bromovaleronitrile, ethyl 6-bromohexanoate) in liquid ammonia are the corresponding 4-(ω-X-alkyl)benzonitriles. S
Autor:
Vladimir V. Koval, E. V. Panteleeva, A. S. Kondrat’ev, E. A. Luk’yanets, V. D. Shteingarts, Leonid I. Goryunov
Publikováno v:
Russian Journal of Organic Chemistry. 49:138-144
Alkylation of phthalonitrile radical anion sodium salt with terminal alkenyl bromides (4-bromobut-1-ene, 5-bromopent-1-ene, and 6-bromohex-1-ene) gave the corresponding 4-alkenylphthalonitriles which reacted with alkanethiols (BuSH and n-C10H21SH) to
Autor:
G. E. Sal’nikov, Galina A. Selivanova, V. D. Shteingarts, E. V. Amosov, E. A. Luk’yanets, V. G. Vasil’ev, S. V. Balina, Leonid I. Goryunov
Publikováno v:
Russian Journal of Organic Chemistry. 47:1240-1246
The nitration of 2,3′,4′-tricyanobiphenyl with subsequent transformations of the obtained product provided 4-X-2,3′,4′-tricyanobiphenyls (X = NO2, NH2, NHCOCH3, Br, I). The condensation of the initial biphenyl or its 4-X-derivatives (X = NO2,
Publikováno v:
Russian Chemical Bulletin. 58:1049-1061
A primary functionalization of quinolines polyfluorinated at the benzene ring (5,7-difluoro-, 5,7,8-trifluoro-, 5,6,8-trifluoro-, 8-chloro-5,7-difluoro-, 5,6,7,8-tetrafluoro-, and 5,7,8-trifluoro-6-(trifluoromethyl)quinolines) by the reaction with ni
Publikováno v:
Russian Chemical Reviews. 77:601-619
The state-of-the-art research related to the use of stable anionic reduced forms (radical anions, dianions, cyclohexadienyl anions) of electron-deficient arenes as synthons for the design of short synthetic pathways from basic reagents to compounds d
Publikováno v:
Russian Chemical Bulletin. 57:768-779
Synthetic and mechanistic aspects of the developed approach to the activation of aromatic nitriles are considered. The approach is based on the transformation of aromatic nitriles into stable anionic reduced forms. The latter, as shown for the reacti
Publikováno v:
Russian Journal of Organic Chemistry. 43:1765-1772
Reactions of fluoro-and chloromesitylene π-complexes [(η6-1-Hlg-2,4,6-Me3C6H2)(η5-C5EtMe4)Rh]-(BF4)2 (Hlg = F, Cl) with diethyl malonate anion in THF or acetone-d6 at 20°C initially (within the first 5–30 min) involve nucleophile addition at un
Publikováno v:
Russian Chemical Bulletin. 56:1110-1118
The major products of reactions of the terephthalonitrile radical anion with α,ω-dibromoalkanes Br(CH2)nBr (n = 3–5) were 4-(ω-bromoalkyl)benzonitriles. Analogous reactions of the terephthalonitrile dianion mainly yielded α,ω-bis(4-cyanophenyl
Autor:
V. D. Shteingarts
Publikováno v:
Herald of the Russian Academy of Sciences. 77:262-269
Publikováno v:
Russian Journal of Organic Chemistry. 42:1280-1288
Using cyclopropylmethyl bromide as mechanism-sensitive reagent, it was shown that the reaction of phthalonitrile radical anion with alkyl halides in liquid ammonia involves electron transfer. The effects of the nature of alkyl bromide and counterion