Volume 52, Issue 33 pp. 8633-8637
Communication

Organocatalytic Diastereo- and Enantioselective 1,3-Dipolar Cycloaddition of Azlactones and Methyleneindolinones

Wangsheng Sun

Wangsheng Sun

Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000 (P.R. China)

These authors contributed equally.

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Gongming Zhu

Gongming Zhu

Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000 (P.R. China)

These authors contributed equally.

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Chongyang Wu

Chongyang Wu

Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000 (P.R. China)

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Guofeng Li

Guofeng Li

Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000 (P.R. China)

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Dr. Liang Hong

Corresponding Author

Dr. Liang Hong

Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000 (P.R. China)

Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000 (P.R. China)Search for more papers by this author
Prof. Dr. Rui Wang

Corresponding Author

Prof. Dr. Rui Wang

Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000 (P.R. China)

Key Laboratory of Preclinical Study for New Drugs of Gansu Province, School of Basic Medical Sciences, Lanzhou University, Lanzhou, 730000 (P.R. China)Search for more papers by this author
First published: 01 July 2013
Citations: 139

We gratefully acknowledge financial support from the NSFC (20932003, 91213302, 21272102, 21202071) and the National S&T Major Project of China (2012ZX09504001-003). W.S. is grateful for a Scholarship Award for Distinguished Doctoral Candidates granted by the Ministry of Education, China.

Graphical Abstract

A simple route to complexity: An organocatalytic 1,3-dipolar cycloaddition between azlactones and methyleneindolinones provided spirooxindoles with high enantioselectivity (see scheme). This transformation takes advantage of the nucleophilic C4 and electrophilic C2 atoms in the azlactone substrate. Bn=benzyl, HOBt=1-hydroxy-1H-benzotriazole, MTBE=methyl tert-butyl ether, PG=protecting group, TMS=trimethylsilyl.

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