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 from terminal alkynes and α,β-unsaturated ketoximes. The use of electron-deficient phosphite ligands is important to suppress dimerization of the terminal alkynes to enynes.
已经开发了一种方便的一锅铑催化的 C-H 键官能化/电环化/脱水程序,用于从末端炔烃和 α,β-不饱和酮肟合成高度取代的吡啶衍生物。缺电子亚磷酸酯配体的使用对于抑制末端炔烃向烯炔烃的二聚化很重要。