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Royal Society of Chemistry, Chemical Communications, 81(49), p. 9266

DOI: 10.1039/c3cc45469j

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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

Journal article published in 2013 by Sota Okumura, Youhei Takeda ORCID, Kensuke Kiyokawa, Satoshi Minakata
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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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.