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

Shengtao Ding; Yuepeng Yan; Ning Jiao

doi:10.1039/C2CC33706A

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

Shengtao Ding,^a Yuepeng Yan^a and Ning Jiao*^ab

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* Corresponding authors

^a 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
E-mail: jiaoning@bjmu.edu.cn
Fax: +86-010-8280-5297
Tel: +86-010-8280-5297

^b State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China

Abstract

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

This article is part of the themed collection: Emerging Investigators 2013

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Article information

DOI: https://doi.org/10.1039/C2CC33706A
Article type: Communication
Submitted: 23 May 2012
Accepted: 28 Jun 2012
First published: 29 Jun 2012

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Chem. Commun., 2013,49, 4250-4252

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

S. Ding, Y. Yan and N. Jiao, Chem. Commun., 2013, 49, 4250 DOI: 10.1039/C2CC33706A

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