Reactive Ketenes through a Carbonate/Amine Shuttle Deprotonation Strategy: Catalytic, Enantioselective α-Bromination of Acid Chlorides
作者:Ahmed M. Hafez、Andrew E. Taggi、Harald Wack、Julie Esterbrook、Thomas Lectka
DOI:10.1021/ol0160147
日期:2001.6.1
[GRAPHICS]We have developed an efficient methodology for the generation of ketenes by employing a catalytic shuttle base and potassium carbonate as a stoichiometric base, We have applied this technology to the catalytic, asymmetric a bromination of acid chlorides.