Zobrazeno 1 - 10
of 73
pro vyhledávání: '"R. V. Kaberdin"'
Autor:
R. V. Kaberdin, Vladimir I. Potkin
Publikováno v:
Chemistry of Heterocyclic Compounds. 43:1493-1511
Published information on methods for the production of benzazetines and their dehydro derivatives (benzazetes) and their chemical transformations is reviewed and analyzed. It was noted that benzazetines with an unsubstituted NH group are unstable and
Publikováno v:
Russian Journal of Organic Chemistry. 43:1617-1621
Bromination of 3,4,4-trichlorobut-3-enoic acid in boiling carbon tetrachloride led to the formation of 2-bromo-3,4,4-trichlorobut-3-enoic acid as a result of replacement of hydrogen in the CH2 group. The reaction at 40°C involved the double C=C bond
Publikováno v:
Russian Journal of Organic Chemistry. 43:587-590
Butane-, phenylmethane-, and benzenethiols reacted with 4,5-dichloro-3-trichloromethyl-1,2-thiazole in the presence of sodium ethoxide to give the corresponding 5-alkyl(aryl)sulfanyl-4-chloro-3-trichloromethyl-1,2-thiazoles. The reaction of 4,5-dichl
Publikováno v:
Russian Journal of Organic Chemistry. 42:1481-1485
The reaction of 1-aryl-3,4,4-trichlorobut-3-en-1-ones with semicarbazide hydrochloride in the presence of sodium acetate is accompanied by prototropic allylic rearrangement, leading to the formation of two isomeric products, semicarbazones of the ini
Publikováno v:
Russian Journal of Organic Chemistry. 40:1146-1150
3-Aryl-5-methylenehydroxyiminoisoxazoles were synthesized by reaction of 1-aryl-3,4,4-trichloro-3-buten-1-ones with hydroxylamine. Reactions of ketones with hydrazine provided pyrazole structures; therewith two pyrazole molecules underwent “couplin
Publikováno v:
Russian Journal of Organic Chemistry. 40:729-732
Nitration of 4-alkoxy (Alk = Me, Et)-2-(1-nitro-2,3,3-trichloro-2-propenylidene)benzazetines with anhydrous HNO3 in glacial acetic acid afforded the corresponding 4-alkoxy-3-nitro-2-(1-nitro-2,3,3-trichloro-2-propenylidene)benzazetines. Reaction of c
Autor:
A. V. Bazhanov, E. A. Dikusar, Vladimir I. Potkin, R. V. Kaberdin, Sergey K. Petkevich, N. V. Kovganko, N. G. Kozlov
Publikováno v:
Chemistry of Natural Compounds. 40:230-234
Previously unknown (Z)-3,4,4,4-tetrachlorobut-2-enoates 1b-20b were prepared in 77-88% yields by reaction in the presence of pyridine of 3,3,4,4,4-pentachlorobutanoic acid chloride with cetyl alcohol (1a), terpenols and terpenone oximes (2a-13a), ste
Publikováno v:
Russian Journal of General Chemistry. 74:578-581
(Z)-2-Naphthylacetylene was synthesized by the reaction of (Z)-3-(2-naphthyl)-3-chloropropenal (prepared from 2-acetylnaphthalene) with aqueous NaOH in dioxane. The reactions of 2-naphthylacetylene with CuCl, [Ag(NH3)2]NO3, and K2[HgI4] gave copper,
Autor:
Sergey K. Petkevich, Vladimir I. Potkin, A. P. Yuvchenko, E. A. Dikusar, R. V. Kaberdin, K. L. Moiseichuk, P. V. Kurman
Publikováno v:
Russian Journal of General Chemistry. 74:586-593
Substituted amides and esters of 3,4,4-trichloro-3-butenoic acid were prepared by reactions of its chloride with appropriate amines and alcohols. Treatment of 3,4,4-trichloro-3-butenomorpholide and tert-butyl 3,4,4-trichloro-3-butenoate results in nu
Autor:
N. V. Kovganko, R. V. Kaberdin, N. G. Kozlov, Vladimir I. Potkin, E. A. Dikusar, N. I. Nechai
Publikováno v:
Chemistry of Natural Compounds. 39:186-190
Previously unknown esters 1b-14b were prepared by reaction of cetyl alcohol 1a, terpene alcohols 2a-6a, sterols 7a-11a, and plant phenols 12a-14a with 4,5-dichloroisothiazol-3-carboxylic acid chloride.