Flexible Stereoselective Functionalizations of Ketones through Umpolung with Hypervalent Iodine Reagents
作者:Pushpak Mizar、Thomas Wirth
DOI:10.1002/anie.201400405
日期:2014.6.2
The functionalization of carbonyl compounds in the α‐position has gathered much attention as a synthetic route because of the wide biological importance of such products. Through polarity reversal, or “umpolung”, we show here that typical nucleophiles, such as oxygen, nitrogen, and even carbon nucleophiles, can be used for addition reactions after tethering them to enol ethers. Our findings allow novel
Chiral Organosilicon Compounds. Part 6.<sup>1</sup>Reaction of A Camphor-Derived Chiral Silyl Enol Ether with Aromatic Aldehydes
作者:Perry T. Kaye、Robin A. Learmonth、Swarnam S. Ravindran
DOI:10.1080/00397919308009799
日期:1993.2
Abstract The preparation and titanium tetrachloride catalysed reactions of a novel camphor-derived chiral silyl enol ether of pinacolone with selected aromatic aldehydes are reported.