Copper-catalyzed direct oxidative annulation of N-iminopyridinium ylides with terminal alkynes using O2 as oxidant†‡
Shengtao Ding,Yuepeng Yan
Chemical Communications Pub Date : 06/29/2012 00:00:00 , DOI:10.1039/C2CC33706A
Abstract
The aerobic direct dehydrogenative annulation of N-iminopyridinium ylides with terminal alkynes leading to pyrazolo[1,5-a]pyridine derivatives has been developed.
