Zobrazeno 1 - 10
of 27
pro vyhledávání: '"E. Yannakopoulou"'
Autor:
Bezhan Chankvetadze, Afroditi Pinaka, Georgios C. Vougioukalakis, E. Yannakopoulou, Dimitra Dimotikali, Kyriakos Papadopoulos
Publikováno v:
Chirality. 25:119-125
The ability of chiral β-amino alcohols to catalyze the direct asymmetric aldol reaction was evaluated for the first time in aqueous micellar media. A family of cheap and easily accessible β-amino alcohols, obtained in one step from naturally occurr
Publikováno v:
Chemical Engineering Journal. 134:72-77
Novel functionalized organo-inorganic chiral catalysts have been prepared in two steps from activated silica gel and chiral organic auxiliaries, such as (+)-cinchonine or (S)-(−)-nicotine. These new catalysts have been tested in a solid–liquid–
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 263:132-135
A prompt gamma neutron activation analysis (PGNAA) facility has been developed for the determination of nitrogen and thus total protein in large volume biological samples or the whole body of small animals. In the present work, the accuracy of nitrog
Autor:
M. G. Davitishvili, Maia Merlani, Kyriakos Papadopoulos, E. P. Kemertelidze, E. Yannakopoulou, L. Sh. Amiranashvili
Publikováno v:
Chemistry of Natural Compounds. 42:194-197
A series of new isonicotinylhydrazones and thiosemicarbazones of various ketosteroids was synthesized. The structures of the compounds were confirmed by NMR and IR spectroscopy and mass spectrometry.
Autor:
E. Yannakopoulou, A. Nikokavoura, Theodoros M. Triantis, Dimitra Dimotikali, Kyriakos Papadopoulos
Publikováno v:
Analytica Chimica Acta. 494:41-47
A sensitive and simple procedure is described for measuring the antioxidant activity (AA) of olive oil and seed oil aqueous extracts using the chemiluminescence of N , N ′-dimethyl-9,9′-biacridinium dinitrate (lucigenin). It was found that olive
Autor:
Bezhan Chankvetadze, Vakhtang Barbakadze, E. Yannakopoulou, Lali Gogilashvili, Kyriakos Papadopoulos, Maia Merlani, Lela Amiranashvili
Publikováno v:
Chirality.
The racemic and enantioselective synthesis of a novel glyceric acid derivative, namely, 2,3-dihydroxy-3-(3,4-dihydroxyphenyl)-propionic acid as well as the antioxidant activities is described. The virtually pure enantiomers, (+)-(2R,3S)-2,3-dihydroxy
Autor:
Dionysios C. Christodouleas, Kyriakos Papadopoulos, E. Yannakopoulou, Charalambos Fotakis, Antony C. Calokerinos
Publikováno v:
Analytica chimica acta. 652(1-2)
A sensitive and simple procedure is described for evaluating the antioxidant activity of 21 known hydrophilic and hydrophobic compounds by using the chemiluminogenic reaction of lucigenin with hydrogen peroxide. The method was validated for linearity
Autor:
K. Papadopoulos, E. Yannakopoulou, Vakhtang Barbakadze, K. Mulkijanyan, L. Amiranashvili, Dionysios C. Christodouleas, M. Merlani, L. Gogilashvili
Publikováno v:
Planta Medica. 74