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2 results on '"Qiong Chang"'

1. ChemInform Abstract: Methylsulfonic Acid Adsorbed on Silica Gel as a Solid Acid for Dimerization of Indoles: A Convenient Synthesis of 2,3′-Bi(3H-indol)-3-one Oximes

Author

Liang-Xian Liu, Qiong Chang, Hongen Qu, Wenbing Qin, and Zhengwang Chen

Subjects
Indole test, chemistry.chemical_compound, Adsorption, chemistry, Silica gel, General Medicine, Solid acid, Oxime, Sodium nitrite, Combinatorial chemistry, Coupling reaction
Abstract

A simple, convenient, and efficient approach for the synthesis of (E)-2,3′-bi(3H-indol)-3-one oxime derivatives has been developed. The methodology is based on a three-component coupling reaction of indoles and sodium nitrite using a silica-supported methylsulfonic acid as solid acid. The practical utility of this three-component coupling reaction has been demonstrated in the gram-scale dimerization of indole. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications® for the following free supplemental resource: Full experimental and spectral details.]

Published
2013

2. ChemInform Abstract: Metal-Free Catalyzed Oxidative Trimerization of Indoles by Using TEMPO in Air: A Biomimetic Approach to 2-(1H-Indol-3-yl)-2,3′-biindolin-3-ones

Author

Liang-Xian Liu, Qiong Chang, Zhengwang Chen, Ning Wang, Yun-Hong Bao, and Wenbing Qin

Subjects
Metal free, Chemistry, General Medicine, Oxidative phosphorylation, Combinatorial chemistry, Catalysis
Abstract

A novel, operationally simple, and practical biomimetic synthetic method for the trimerization of indoles using TEMPO in air as oxidant is presented.

Published
2013

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