Zobrazeno 1 - 10
of 15
pro vyhledávání: '"R. Dzh. Khachikyan"'
Publikováno v:
Russian Journal of General Chemistry. 89:219-223
(E)-(3-Aryl-3-oxoprop-1en-1-yl)triphenylphosphonium bromides reacted with arylhydrazines in an acidic medium to form hydrazones, the intramolecular heterocyclization of which led to the formation of (2,5- diaryl-2,3-dihydro-1H-pyrazol-3-yl)triphenylp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b403b5f39ee9f8119a96f0de68c79598
https://doi.org/10.1134/s1070363219020087
https://doi.org/10.1134/s1070363219020087
Publikováno v:
Pharmaceutical Chemistry Journal. 51:873-876
A series of β-p-toluylacrylate salts with various amines that retained the molecular fragment responsible for the antibacterial activity were synthesized. A new efficient method for obtaining β-aroylvinyl-1-pyridinium and -triphenylphosphonium brom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75ef45d90744728ee4e942827fa06819
https://doi.org/10.1007/s11094-018-1707-7
https://doi.org/10.1007/s11094-018-1707-7
Publikováno v:
Russian Journal of General Chemistry. 87:1503-1509
Reactions of (E)-[(2-aroyl)ethenyl]triphenylphosphonium bromides with hydroxylamine hydrochloride resulted in the formation of oximes undergoing α-phenyl migration when reacted with aqueous alkali. Reaction of these salts with hydrazine hydrochlorid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9618f515f1bcf7c2bed6a89efaa2e36
https://doi.org/10.1134/s1070363217070106
https://doi.org/10.1134/s1070363217070106
Publikováno v:
Russian Journal of General Chemistry. 86:1574-1580
Regardless of pH and a solvent nature the reactions of (E)-1-(β-aroylvinyl)pyridinium bromides with hydrazine led to the formation of pyrazole derivatives. The salts reacted with thiourea via intermediate formation of 4-arylpyrimidine-2-thiol to giv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b78bdd3f1ae195c942ed3cdabb98d803
https://doi.org/10.1134/s1070363216070070
https://doi.org/10.1134/s1070363216070070
Publikováno v:
Russian Journal of General Chemistry. 85:1078-1081
Reactions of trans-1-(β-aroylvinyl)pyridinium bromides with hydroxylamine hydrochloride lead to a mixture of substituted isoxazoles regardless of the substituent nature in the aromatic core and the solvent.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8eb741c2d7ed7dcfcc8adcd9a004389
https://doi.org/10.1134/s1070363215050138
https://doi.org/10.1134/s1070363215050138
Autor:
R. Dzh. Khachikyan
Publikováno v:
Russian Journal of General Chemistry. 79:88-91
Triphenyl(2-p-toluoylethyl)- and triphenyl(2-p-bromobenzoylethyl)phosphonium bromide 2,4-dinitrophenylhydrazones were established to form a bipolar compounds with a negatively charged nitrogen atom and a positively charged phosphonium atom, under the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::369e49a0d7f78b08fa8eed3821c74894
https://doi.org/10.1134/s1070363209010137
https://doi.org/10.1134/s1070363209010137
Publikováno v:
Russian Journal of General Chemistry. 78:1452-1457
The example of vinylpyridinium salts to establish for the first time the possibility of nucleophilic addition to the vinyl group in quaternary ammonium salts, which provides evidence against the concept that such reactions involve d orbitals. The nuc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::955d86c9ebd7897ff94596d08dc12a25
https://doi.org/10.1134/s107036320807030x
https://doi.org/10.1134/s107036320807030x
Publikováno v:
Russian Journal of General Chemistry. 77:566-569
Reactions of pyrazole, 3,5-dimethylpyrazole, 1,2,4-triazole, 5-aminotetrazole, and imidazole with β-carboxyvinyl(triphenyl)phosphonium chloride in boiling acetonitrile are accompanied by elimination of azole with formation of the initial salt and el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1659851d3968b89646f30d0e7611b64
https://doi.org/10.1134/s107036320704010x
https://doi.org/10.1134/s107036320704010x
Publikováno v:
Russian Journal of General Chemistry. 76:1550-1553
Temperature factor was found to be determining in the isomerization of 2-carboxyprop-1-en-1-yl-and 2-carboxyprop-2-en-1-yl(triphenyl)phosphonium bromides. Elevated temperature favors formation of isomer with the double bond in the β,γ position with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08e1f7e8aabbe0c8fad34e6a6c6dbafb
https://doi.org/10.1134/s1070363206100070
https://doi.org/10.1134/s1070363206100070
Publikováno v:
Russian Journal of General Chemistry. 75:1889-1894
3-(Triphenylphosphoniochlorido)acrylic and 2,3-dichloropropionic acids react with triphenylphosphine to form 1,2-bis(triphenylphosphoniochlorido)ethane. Under analogous conditions, 2,3-dibromopropionic acid undergoes debromination followed by triphen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e67f4e8acba0d7330342d1fe75484407
https://doi.org/10.1007/s11176-006-0009-z
https://doi.org/10.1007/s11176-006-0009-z