Enantioselective Boronate Additions to N-Acyl Quinoliniums Catalyzed by Tartaric Acid
摘要:
Tartaric acid catalyzes the asymmetric addition of vinylboronates to N-acyl quinoliniums, affording highly enantioenriched dihydroquinolines. The catalyst serves to activate the boronate through a ligand-exchange reaction and generates the N-acyl quinolinium in situ from the stable quinoline-derived N,O-acetal.
Enantioselective Boronate Additions to <i>N</i>-Acyl Quinoliniums Catalyzed by Tartaric Acid
作者:Tomohiro Kodama、Philip N. Moquist、Scott E. Schaus
DOI:10.1021/ol2028702
日期:2011.12.2
Tartaric acid catalyzes the asymmetric addition of vinylboronates to N-acyl quinoliniums, affording highly enantioenriched dihydroquinolines. The catalyst serves to activate the boronate through a ligand-exchange reaction and generates the N-acyl quinolinium in situ from the stable quinoline-derived N,O-acetal.