Shengtao Ding, Yuepeng Yan and Ning Jiao
Chem. Commun., 2013,49, 4250-4252
DOI:
10.1039/C2CC33706A,
Communication
The aerobic direct dehydrogenative annulation of N-iminopyridinium ylides with terminal alkynes leading to pyrazolo[1,5-a]pyridine derivatives has been developed.