Ate Complexes of Secondary Boronic Esters as Chiral Organometallic-Type Nucleophiles for Asymmetric Synthesis
作者:Robin Larouche-Gauthier、Tim G. Elford、Varinder K. Aggarwal
DOI:10.1021/ja2077813
日期:2011.10.26
The addition of an aryllithium reagent to a secondary boronicester leads to an intermediate boron-ate complex that behaves as a chiral nucleophile, reacting with a broad range of electrophiles with inversion of stereochemistry. Depending on the electrophile, the C-B bond can be converted into C-I, C-Br, C-Cl, C-N, C-O, and C-C, all with very high levels of stereocontrol. This discovery now adds a