Issue 81, 2013
From the journal:

Chemical Communications

Hypervalent iodine(iii)-induced oxidative [4+2] annulation of o-phenylenediamines and electron-deficient alkynes: direct synthesis of quinoxalines from alkyne substrates under metal-free conditions†

Sota Okumura,a   Youhei Takeda,*ab   Kensuke Kiyokawaa  and  Satoshi Minakata*a  

* Corresponding authors

a Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Japan
E-mail: minakata@chem.eng.osaka-u.ac.jp
Fax: +81-6-6879-7402
Tel: +81-6-6879-7400

b Frontier Research Base for Global Young Researchers, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Japan
E-mail: takeda@chem.eng.osaka-u.ac.jp

Abstract

Hypervalent iodine(III)-induced oxidative [4+2] annulation of o-phenylenediamines and electron-deficient alkynes under metal-free conditions has been developed. The reaction allows for direct access to quinoxalines bearing two electron-withdrawing groups in an efficient manner.

Graphical abstract: Hypervalent iodine(iii)-induced oxidative [4+2] annulation of o-phenylenediamines and electron-deficient alkynes: direct synthesis of quinoxalines from alkyne substrates under metal-free conditions

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Article information

DOI
https://doi.org/10.1039/C3CC45469J
Article type
Communication
Submitted
19 Jul 2013
Accepted
13 Aug 2013
First published
14 Aug 2013
This article is Open Access
Creative Commons BY-NC license

Chem. Commun., 2013,49, 9266-9268

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Hypervalent iodine(III)-induced oxidative [4+2] annulation of o-phenylenediamines and electron-deficient alkynes: direct synthesis of quinoxalines from alkyne substrates under metal-free conditions

S. Okumura, Y. Takeda, K. Kiyokawa and S. Minakata, Chem. Commun., 2013, 49, 9266 DOI: 10.1039/C3CC45469J

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