Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Cathy Einhorn"'
Autor:
Svetlana Tsekhanovich, Jacques Einhorn, Frédérique Loiseau, Jérôme Jacq, Jérôme Chauvin, Cathy Einhorn, Damien Jouvenot, Bernard Bessieres, Maylis Orio
Publikováno v:
Photochemistry and Photobiology
Photochemistry and Photobiology, Wiley, 2012, 88, pp.633-638. ⟨10.1111/j.1751-1097.2012.01090.x⟩
Photochemistry and Photobiology, 2012, 88, pp.633-638. ⟨10.1111/j.1751-1097.2012.01090.x⟩
Photochemistry and Photobiology, Wiley, 2012, 88, pp.633-638. ⟨10.1111/j.1751-1097.2012.01090.x⟩
Photochemistry and Photobiology, 2012, 88, pp.633-638. ⟨10.1111/j.1751-1097.2012.01090.x⟩
The emission properties of a series of substituted 1,3-diarylisobenzofurans have been studied. Most compounds exhibit very intense emission in the nanosecond timescale at room temperature as well as at 77 K. The room temperature emission is attribute
Publikováno v:
Synlett. 2006:2035-2038
A convenient single-step synthesis of various symmetrically substituted 1,3-diarylisobenzofiirans from readily available 3-methoxy-3H-isobenzofuran-l-one (la) and two equivalents of aryl Grignard reagents is described. The title compounds are obtaine
Publikováno v:
Tetrahedron: Asymmetry. 16:1681-1684
Racemic 4,5-bis-(2-hydroxy-phenyl)-benzo[f]isoindole-1,3-dione 2, an atropisomeric diphenol prone to thermal isomerisation, has been efficiently resolved by conversion into its N-(α)-Boc-tryptophan diesters. Easy chromatographic separation of the di
Publikováno v:
Tetrahedron Letters. 43:9245-9248
Racemic [1,1′]binaphthalenyl-2,2′-diol (BINOL, (±)- 1 ) has been esterified with various commercially available N -protected- l -amino acids, giving the corresponding diastereomeric esters. Their TLC separation factors were highly dependent on t
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1967-1972
In this paper, we report a theoretical study of the hydrogen abstraction reactions from ethylbenzene by a series of imide-N-oxyl radicals. Geometry optimizations and vibrational frequencies were performed using density functional theory at the B3LYP/
Publikováno v:
Synthetic Communications. 31:741-748
A new, one pot synthesis of various N-hydroxyimides from N-unsubstituted imides is described. Imides are first transformed into their N-Boc derivatives, which are next reacted with aqueous hydroxylamine, providing crystalline hydroxylammonium salts o
Publikováno v:
Synthetic Communications. 30:1837-1848
The novel, diastereomeric meso- (cis) and (±)- (trans) nitroxides 2,5-dicarboxymethyl-2,5-dimethylpyrrolidine-1-oxyl have been synthesized via a dienolate based strategy. Both optically pure enantiomers of the C 2 symmetric trans diastereomer have b
Publikováno v:
The Journal of Organic Chemistry. 64:4542-4546
Autor:
Jean-Louis Pierre, Jacques Einhorn, Celine Marcadal, Karine Gorgy, Jean-Claude Leprêtre, Cathy Einhorn, Eric Saint-Aman
Publikováno v:
Electrochimica Acta. 44:385-393
The electrocatalytic oxidation of several alcohols was performed using a new series of substituted N-hydroxyphthalimides as catalysts. The substitution in the N-hydroxyphthalimide structure by electron withdrawing or donor substituents has a benefici
Autor:
Cathy Einhorn, Marie-Thérèse Averbuch, Fabien Ratajczak, Jacques Einhorn, André Durif, Jean-Louis Pierre
Publikováno v:
Tetrahedron Letters. 39:2565-2568
The novel C2 symmetric chiral amine trans-2,6-dimethyl-2,6-diphenylpiperidine has been synthesized via two successive nitrone nucleophilic addition-oxidation sequences, followed by reduction of the intermediate nitroxide. Pure enantiomers have been o