Zobrazeno 1 - 10
of 23
pro vyhledávání: '"A. F. Rukasov"'
Autor:
Yu. A. Baskakov, S. P. Epshtein, T. G. Simonova, V. P. Tashchi, Yu. G. Putsykin, A. F. Rukasov
Publikováno v:
Chemistry of Heterocyclic Compounds. 19:74-78
The reaction of N1-or N2-monoacyl derivatives of 2-hydrazinocyclohexanone, 3-hydrazino-3-methyl-2-butanone, and 2-hydrazino-2-methylpropanal oximes with isocyanates was used to synthesize, N,N-diacyl derivatives, which, under the influence of acids o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d27f667b69e0440e26dac90da360e83
https://doi.org/10.1007/bf00512820
https://doi.org/10.1007/bf00512820
Publikováno v:
Chemistry of Heterocyclic Compounds. 19:993-996
4-Oximino-3-aryl(alkyl)-5,5-dimethylimidazolidin-2-ones were obtained by air oxidation of substituted 4-hydroxyaminoimidazolidir-2-ones in the presence of sodium ethoxide. In hydrochloric acid 4-oximino-3-(3′, 4′-dichlorophenyl)imidazolidin-2-one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48a1125bf83877913ad1417504f6418d
https://doi.org/10.1007/bf00506887
https://doi.org/10.1007/bf00506887
Publikováno v:
Chemistry of Heterocyclic Compounds. 19:897-900
Various variants of reactions involving the carbamoylation of 1-hydroxy-3-(3′-chlorophenyl)-5,5-dimethyl-4-hydroxylaminoimidazolidin-2-one, which has three nucleophilic centers, viz., the N- and O-hydroxylamino groups and the O-hydroxyurea fragment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ac9825463fd298817c4831f44dc6d1d
https://doi.org/10.1007/bf00516460
https://doi.org/10.1007/bf00516460
Publikováno v:
Chemistry of Heterocyclic Compounds. 19:540-543
The cyclization of 3-[N-methyl-N-(ethoxycarbonyl)amino]-3-methyl-2-butanone oxime in an alkaline medium leads to 1-hydroxy-2,2′-dioxo-3,4,4,3′,4′-hexamethylimida-zolidine-spiro-5,6′-perhydroimidazo[2,3-c]-isoxazole, whereas the cyclization of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ba812d6816837dacd6ca84a821af6e6
https://doi.org/10.1007/bf00514466
https://doi.org/10.1007/bf00514466
Autor:
S. P. Epshtein, Yu. C. Putsykin, T. I. Orlova, N. S. Magomedova, A. F. Rukasov, V. P. Tashchi, V. K. Bel'skii
Publikováno v:
Chemistry of Heterocyclic Compounds. 23:1026-1031
The treatment of 4- and 5-hydroxylaminothiazolidine-2-thiones as well as 5-hydroxylaminothiazolidin-2-one with acetic anhydride or benzoyl chloride is accompanied, as a rule, by the formation of O-acyl derivatives. The 4-(O-acyl) derivatives are ther
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4000855f727b28fbc8e4ceb7054b58c
https://doi.org/10.1007/bf00475375
https://doi.org/10.1007/bf00475375
Publikováno v:
Chemistry of Heterocyclic Compounds. 23:1352-1356
The carbamoylation of 4- and 5-hydroxyaminothiazolidine-2-thiones by methyl and 3,4-dichlorophenyl isocyanates leads to the corresponding hydroxyureas, which rearrange to 4- and 5-ureidothiazolidin-2-ones on heating in the presence of a base. Under t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e5defe2aa1ef03b81d387d3f0a28dbe
https://doi.org/10.1007/bf00472264
https://doi.org/10.1007/bf00472264
Autor:
A. F. Rukasov, Yu. G. Putsykin, T. I. Orlova, L. Ya. Bogel'fer, V. P. Tashchi, S. P. Epshtein
Publikováno v:
Chemistry of Heterocyclic Compounds. 22:451-455
Tsomeric 4- and 5-hydroxylaminothiazolidin-2-thiones were synthesized by the reaction of 1,2-aminosubstituted oximes with CS2, and of dimeric olefin nitrosochlorides with dithiocarbamate salts. These compounds react with aldehydes and ketones to form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12718a4d02e106d236e0b0973b922a55
https://doi.org/10.1007/bf00542790
https://doi.org/10.1007/bf00542790
Publikováno v:
Chemistry of Heterocyclic Compounds. 15:603-607
The reaction of 5-hydroxy-3,3,5-trimethylisoxazolidine with alkyl (or aryl) isocyanates gives N-alkyl(aryl)-carbamoyl-5-hydroxy-3,3,5-trimethylisoxazolidines, which react with methanol in the presence of p-toluenesulfonic acid to give 5-methoxy-1-car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15e6b64199a20177d37e6f4c47d124f6
https://doi.org/10.1007/bf00539492
https://doi.org/10.1007/bf00539492
Publikováno v:
Chemistry of Heterocyclic Compounds. 20:323-325
The corresponding 4-(O-carbamoylhydroxyamino)imidazolidin-2-ones were obtained by cyclization of O,N-dicarbamoyl derivatives of N-(3-oximino-2-methyl-2-butyl)- and N-(1-oximino-2-cyclohexyl)methylamines in alkaline media. It was shown that the carbam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98638c26b4d2d813112ddb25a028333c
https://doi.org/10.1007/bf00515649
https://doi.org/10.1007/bf00515649
Autor:
Yu. G. Putsykin, V. V. Negrebetskii, A. F. Rukasov, V. P. Tashchi, L. Ya. Bogel'fer, Yu. A. Baskakov
Publikováno v:
Chemischer Informationsdienst. 11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d301b08413b400c9ecf891ab45e0576
https://doi.org/10.1002/chin.198017167
https://doi.org/10.1002/chin.198017167