作者:Lan-Gui Xie、Jack Rogers、Ioannis Anastasiou、Jamie A. Leitch、Darren J. Dixon
DOI:10.1021/acs.orglett.9b02119
日期:2019.9.6
The catalytic reductive transformation of carboxylic esters into α-branched ethers is described. The procedure pivots on the chemoselective iridium-catalyzedhydrosilylation of ester and lactone functionality to afford a silyl acetal intermediate. Upon treatment with a Lewis acid, these hemilabile intermediates dissociate to form reactive oxocarbenium ions, which can be intercepted by allyltributyltin