Cut to the chase: A ruthenium complex derived from 1‐adamantyl carboxylate (1‐AdCO2−) enabled highly regioselective intermolecular directalkylation of arenes with unactivated primary and secondary alkyl halides bearing β‐hydrogen atoms (see scheme; NMP=N‐methylpyrrolidinone).
Carboxylate-Assisted Ruthenium-Catalyzed Direct Alkylations of Ketimines
作者:Lutz Ackermann、Nora Hofmann、Rubén Vicente
DOI:10.1021/ol200366n
日期:2011.4.1
The mechanism of carboxylate-assistedruthenium(II)-catalyzed direct alkylations of ketimines with unactivated alkyl halides was probed through experimental studies. The remarkable chemoselectivity of the broadly applicable catalyst also enabled direct alkylations among others on H2O or under solvent-free reaction conditions.