Stereocontrolled Oxidation of Six-Membered Cyclic O-Silyl Nitroso Acetals with mCPBA: Umpolung Approach to Functionalized Nitro Compounds
作者:Anastasia S. Naumova、Andrey A. Mikhaylov、Marina I. Struchkova、Yulia A. Khomutova、Vladimir A. Tartakovsky、Sema L. Ioffe
DOI:10.1002/ejoc.201101768
日期:2012.4
cyclic nitroso acetals 2 are smoothly oxidized with meta-chloroperbenzoic acid to δ-nitro alcohols 3 or γ-nitro carbonyl compounds 4 with the retention of their relative configurations of stereocenters (diastereomeric ratio > 10:1). The reaction sequence – the generation of diastereomerically pure six-membered cyclic nitronates 1 from simple aliphaticnitrocompounds (AN), C–C coupling of 1 with π-nucleophiles