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2005
Enantioselective syntheses
O 0031
Novel Organic Catalysts for the Direct Enantioselective α-Oxidation of Carbonyl
— Proline-derived catalysts (I) are investigated in the reaction of cyclo36- 032 Compounds.
hexanone with nitrobenzene. The derivative (Ia) is used for further transformations.
The formation of by-products of type (V) can be avoided by slow addition of the electrophile to the reaction mixture. — (SUNDEN, H.; DAHLIN, N.; IBRAHEM, I.;
ADOLFSSON*, H.; CORDOVA, A.; Tetrahedron Lett. 46 (2005) 19, 3385-3389;
Dep. Org. Chem., Arrhenius Lab., Univ. Stockholm, S-106 91 Stockholm, Swed.;
Eng.) — Mais
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