Rhodium-Catalyzed Chemo- and Regioselective Decarboxylative Addition of β-Ketoacids to Allenes: Efficient Construction of Tertiary and Quaternary Carbon Centers
作者:Changkun Li、Bernhard Breit
DOI:10.1021/ja411397g
日期:2014.1.22
A rhodium-catalyzedchemo- and regioselective intermolecular decarboxylative addition of β-ketoacids to terminalallenes is reported. Using a Rh(I)/DPPF system, tertiary and quaternary carbon centers were formed with exclusively branched selectivity under mild conditions. Preliminary mechanism studies support that the carbon-carbon bond formation precedes the decarboxylation and the reaction occurs