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作者:R. Dzh. Khachikyan , Z. G. Ovakimyan ...
来源:[J].Russian Journal of General Chemistry(IF 0.432), 2017, Vol.87 (7), pp.1503-1509Springer
摘要: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 hydrochloride and o -phenylenediamin...
作者:R. Dzh. Khachikyan , Z. G. Hovakimyan ...
来源:[J].Russian Journal of General Chemistry(IF 0.432), 2015, Vol.85 (5), pp.1078-1081Springer
摘要:Abstract(#br)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.
作者:R. Dzh. Khachikyan , Z. G. Ovakimyan ...
来源:[J].Russian Journal of General Chemistry(IF 0.432), 2016, Vol.86 (7), pp.1574-1580Springer
摘要:Abstract(#br)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 give ( Z )-2-[...
作者:S. G. Agbalyan , R. Dzh. Khachikyan
来源:[J].Chemistry of Heterocyclic Compounds(IF 0.634), 1980, Vol.15 (7), pp.770-772Springer
摘要:Abstract(#br)The reactions of β-aroylacrylic acids and their methyl esters with 1-methyl- and 1-benzyl-3,4-dihydroisoquinolines lead to the formation of α-substituted β-aroylpropionic acids and their esters, which undergo cyclization to benzopyrrocolinone derivatives.
作者:R. Dzh. Khachikyan
来源:[J].Russian Journal of General Chemistry(IF 0.432), 2007, Vol.77 (6), pp.1134-1135Springer
摘要:Abstract(#br)The reaction of triphenyl(2- p -toluylethyl)phosphonium bromide with hydrazine hydrochloride yields, along with the hydrazone, 6- p -tolyl-2,3-dihydropyridazin-3-one as a minor product.
作者:R. Dzh. Khachikyan , N. V. Tovmasyan , M. G. Indzhikyan
来源:[J].Russian Journal of General Chemistry(IF 0.432), 2005, Vol.75 (12), pp.1895-1898Springer
摘要:Abstract(#br)Triphenyl(β-aroylethyl)phosphonium bromides and esters of α-(triphenylphosphoniobromido)-β-aroylpropionic acids were synthesized by the reaction of β-aroylacrylic acids and their esters. Oximes derived from triphenyl(β-aroylethyl)phosphonium bromides were r...
作者:R. Dzh. Khachikyan , N. V. Tovmasyan , M. G. Indzhikyan
来源:[J].Russian Journal of General Chemistry(IF 0.432), 2007, Vol.77 (6), pp.1034-1036Springer
摘要:Abstract(#br)Triphenylphosphine reacts with 2,3-dichloro-2-methylpropionic acid and its ester along the dehydrochlorination pathway with the participation of the less labile hydrogen atom from the methyl group. The subsequent reaction of the unsaturated product with triphenylphos...
作者:R. Dzh. Khachikyan , N. V. Tovmasyan , M. G. Indzhikyan
来源:[J].Russian Journal of General Chemistry(IF 0.432), 2005, Vol.75 (12), pp.1889-1894Springer
摘要:Abstract(#br)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 triphenylphosphine addit...
作者:R. Dzh. Khachikyan , S. L. Davtyan , M. G. Indzhikyan
来源:[J].Russian Journal of General Chemistry(IF 0.432), 2008, Vol.78 (7), pp.1452-1457Springer
摘要:Abstract(#br)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 nucleophilic additio...

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