Zobrazeno 1 - 10
of 154
pro vyhledávání: '"V. F. Lavrushin"'
Publikováno v:
Chemistry of Heterocyclic Compounds. 16:547-550
Under basic catalysis conditions the reaction of 4- and 4'-substituted chalcones with o-phenylenediamine leads to 2,3-dihydro-2,4-diaryl-1H-1,5-benzodiazepines; β-amino adducts, the ability of which to undergo intramolecular condensation increases a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac85f2bdb3053a20eef3458fd7410a10
https://doi.org/10.1007/bf00561358
https://doi.org/10.1007/bf00561358
Publikováno v:
Chemistry of Heterocyclic Compounds. 13:159-162
Eight amino derivatives of thiophene analogs of chalcone were obtained by reduction of the corresponding nitro derivatives with stannous chloride in concentrated hydrochloric acid, and their UV absorption spectra in dioxane were measured. The long-wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6fac428e4dfb1a2ebcac5d239b7b232
https://doi.org/10.1007/bf00497867
https://doi.org/10.1007/bf00497867
Publikováno v:
Chemistry of Heterocyclic Compounds. 16:1128-1133
A number of trans- and cis-isomeric 1-R-2-aryl-3-aroylaziridines were synthesized, and their IR spectra were studied. Intramolecular hydrogen bonding is realized in the trans isomers when R = H, and they exist in the only possible conformation (inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c02e2d03cd7d0affe71fdc43ab81b19
https://doi.org/10.1007/bf00504108
https://doi.org/10.1007/bf00504108
Publikováno v:
Theoretical and Experimental Chemistry. 21:308-314
The electronic absorption spectra of 34 unsaturated ketones were measured in solutions of 93% sulfuric acid. The curves of the absorption of the hydroxycarbonium ions formed as a result of protonation of the investigated compounds in sulfuric acid so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f141642228b43b178270bf06ba332944
https://doi.org/10.1007/bf00523992
https://doi.org/10.1007/bf00523992
Publikováno v:
Theoretical and Experimental Chemistry. 16:488-492
two similar cross-conjugated fragments ( O ~ C C = C H and " f i ~ R) but in contrast to the previously t I \ / ' studied cross-conjugated molecules, such as benzophenone and dibenzylideneacetone [1], they possess a much larger overall v-electron sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1edb384b260873727b10b8c06c6c5f64
https://doi.org/10.1007/bf00517411
https://doi.org/10.1007/bf00517411
Publikováno v:
Theoretical and Experimental Chemistry. 11:620-625
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1cf1aeeb510fe0d8e8f27a736ede5aa
https://doi.org/10.1007/bf00526739
https://doi.org/10.1007/bf00526739
Publikováno v:
Chemistry of Heterocyclic Compounds. 16:424-428
The isomerization of 1,2-diaryl-1, 1a-dihydroazirino[1,2-a]quinozalines into 3-aryl-2-benzylquinoxalines under the action of acids is considered. The structures of the compounds synthesized have been confirmed by IR and PMR spectroscopy. It has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f3f137f430293e8d0ebedea35e04c17
https://doi.org/10.1007/bf00552787
https://doi.org/10.1007/bf00552787
Publikováno v:
Theoretical and Experimental Chemistry. 12:531-535
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45e8c220779460029285032e97a3886c
https://doi.org/10.1007/bf00525179
https://doi.org/10.1007/bf00525179
Publikováno v:
Chemistry of Heterocyclic Compounds. 10:1221-1224
The electronic absorption and fluorescence spectra and the relative quantum yields of 1,3-bis(3-aryl-5-phenyl-Δ2-pyrazolin-1-yl)- and bis- and tris(1-phenyl-5-aryl-Δ2-pyrazolin-3-yl) benzenes were measured and are discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c957f4d033c740c7fb8be0baf3593ccb
https://doi.org/10.1007/bf00470168
https://doi.org/10.1007/bf00470168
Publikováno v:
Chemistry of Heterocyclic Compounds. 13:1190-1194
5-Arylidenerhodanines and the previously undescribed 5-[5-(4-R-phenyl)furfurylidene]rhodanines were synthesized by the Andreasch method. It is assumed that Fermi resonance appears in the IR spectra of some of these compounds in the region of carbonyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98dce12d2e4be8c06d35b001ef5939c2
https://doi.org/10.1007/bf00475942
https://doi.org/10.1007/bf00475942