Copper-catalyzed direct oxidative annulation of N-iminopyridinium ylides with terminal alkynes using O<sub>2</sub>as oxidant
作者:Shengtao Ding、Yuepeng Yan、Ning Jiao
DOI:10.1039/c2cc33706a
日期:——
The aerobic direct dehydrogenative annulation of N-iminopyridinium ylides with terminal alkynes leading to pyrazolo[1,5-a]pyridine derivatives has been developed.