Synthesis of Pyridines from Ketoximes and Terminal Alkynes via C–H Bond Functionalization
作者:Rhia M. Martin、Robert G. Bergman、Jonathan A. Ellman
DOI:10.1021/jo202280e
日期:2012.3.2
An expedient one-pot rhodium catalyzed C–H bond functionalization/electrocyclization/dehydration procedure has been developed for the synthesis of highly substituted pyridine derivatives fromterminal alkynes and α,β-unsaturated ketoximes. The use of electron-deficient phosphite ligands is important to suppress dimerization of the terminal alkynes to enynes.