Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Oleksandr A. Yesypenko"'
Publikováno v:
Molecules, Vol 28, Iss 3, p 1089 (2023)
A practical method of selective alkylation of the third hydroxyl group of disubstituted tert-butyl-calix[4]arenes using anhydrous barium hydroxide as a base was developed in this study. The use of this method in the synthesis of inherently chiral der
Externí odkaz:
https://doaj.org/article/bcd9866c1105474fa120e7e4d28d1af4
Publikováno v:
Chirality. 34:1466-1471
A preparative method for the synthesis of optically pure N-(1-phenylethyl)amides of inherently chiral (cR)- and (cS)-dibenzoyloxy-calix[4]arene acetic acids has been developed. Their absolute stereochemical configuration was determined by X-ray diffr
Publikováno v:
Current Organic Chemistry. 27
Abstract: This review summarized and systematized the currently known methods of substituting phenolic fragments of calix[4]arenes in the para-position, mainly focusing on the conditions of regioselective carrying out such processes. The reactions of
Autor:
Oleksandr A. Yesypenko, Oleksandr O. Trybrat, Svitlana V. Shishkina, V. I. Kalchenko, Viktoriya V. Dyakonenko, Olga I. Kalchenko
Publikováno v:
Chirality. 33:722-730
Inherently chiral dialkyloxy-calix[4]arene acetic acids with asymmetric placement of substituents on the lower rim of the macrocycle were first studied as enantiodiscriminating additives to the mobile phase MeCN/H2 O/HCOOH (75/25/0.02 by volume) in t
Recognition of 1‐phenylethylamine enantiomers by thin solid films of inherently chiral calix[4]arene
Publikováno v:
Chirality. 33:703-709
The enantiodiscrimination properties of stereomerically pure inherently chiral calix[4]arene acetic acids, as well as their esters and amides in relation to 1-phenylethylamine stereoisomers in liquid and gaseous phases were studied by means of proton
Autor:
Svitlana V. Shishkina, Eduard B. Rusanov, Yevgen Karpichev, Oleksandr O. Trybrat, Vitaly I. Kalchenko, Oleksandr A. Yesypenko
Publikováno v:
European Journal of Organic Chemistry. 2021:3912-3919
Autor:
Svitlana V. Shishkina, Z. Yu. Bunina, A. A. Golub, R. V. Rodik, Oleksandr A. Yesypenko, Andriy B. Drapailo, L. I. Atamas, K. N. Belikov, A. B. Rozhenko, Vitaly I. Kalchenko, K. Yu. Bryleva, Yu. S. Boiko
Publikováno v:
Theoretical and Experimental Chemistry. 56:252-260
bis-Methoxycarbonylmethoxy derivatives capable of reacting with the surface of aminopropylated silica gel with the formation of chemically and thermally stable amide bonds were obtained by regioselective distal dialkylation of hydroxyl groups of phos
Autor:
Sergii O. Kravchenko, Aleksey B. Ryabitskii, Oleksandr O. Tribrat, Oleksandr A. Yesypenko, Alexander B. Rozhenko, V. V. Pirozhenko, Oleg M. Usachov, Viktoriya V. Dyakonenko, Anastasia O. Osipova, Vitaly I. Kalchenko, Svitlana V. Shishkina
Publikováno v:
Tetrahedron. 80:131894
All three possible inherently chiral (cS)-propyloxy-octyloxy-calix[4]arene acetic acids were synthesized and their absolute configuration was proved. Complexation of the calix[4]arene acetic acids with a number of chiral compounds have been studied b
Autor:
Jean-Claude Daran, Rinaldo Poli, V. I. Boiko, Andrii Karpus, Eric Manoury, Zoia Voitenko, Vitaly I. Kalchenko, Oleksandr A. Yesypenko
Publikováno v:
European Journal of Organic Chemistry. 2016:3386-3394
The Mitsunobu alkylation of 4-tert-butylcalix[4]arene with (S)-(2-diphenylthiophosphinoferrocenyl)methanol followed by desulfuration of the thiophosphine unit using tris(dimethylamino)phosphine afforded enantiomerically pure calixarene mono- and di(f
Autor:
Eric Manoury, V. I. Boiko, Jean-Claude Daran, Oleksandr A. Yesypenko, Andrii Karpus, Vitaly I. Kalchenko, Zoia Voitenko
Publikováno v:
Journal of Organic Chemistry
Journal of Organic Chemistry, American Chemical Society, 2018, 83 (3), pp.1146-1153. ⟨10.1021/acs.joc.7b02312⟩
Journal of Organic Chemistry, American Chemical Society, 2018, 83 (3), pp.1146-1153. ⟨10.1021/acs.joc.7b02312⟩
International audience; A facile method for the preparation of enantiomerically pure inherently chiral calix[4]arene phosphonic acid (cR,pR)-7 in four steps starting from the readily available and previously synthesized (cS)-enantiomer of calix[4]are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a83a2ecc3cb9a5f7231ce051d5eac17f
https://hal.archives-ouvertes.fr/hal-02129142
https://hal.archives-ouvertes.fr/hal-02129142