Copper-catalyzed direct oxidative annulation of N-iminopyridinium ylides with terminal alkynes using O2 as oxidant.

Chem Commun (Camb)

State Key Laboratory of Natural and Biomimetic Drugs, Peking University, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd., 38, Beijing 100191, People's Republic of China.

Published: May 2013

The aerobic direct dehydrogenative annulation of N-iminopyridinium ylides with terminal alkynes leading to pyrazolo[1,5-a]pyridine derivatives has been developed.

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Source
http://dx.doi.org/10.1039/c2cc33706aDOI Listing

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