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Synlett 2005(2): 337-339  
DOI: 10.1055/s-2004-837210
LETTER
© Georg Thieme Verlag Stuttgart · New York

Rare Earth Perfluorooctanoate [RE(PFO)3]-Catalyzed Condensations of Indole with Carbonyl Compounds

Limin Wang*, Jianwei Han, He Tian, Jia Sheng, Zhaoyu Fan, Xiaoping Tang
Institute of Fine Chemicals, Lab for Advanced Materials, East China University of Science and Technology, 130 Meilong Lu, Shanghai 200237, P. R. China
Fax: +86(21)64252758; e-Mail: wanglimin@ecust.edu.cn; e-Mail: wcathy@china.com;
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Publication History

Received 14 October 2004
Publication Date:
17 December 2004 (online)

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Abstract

New rare earth perfluorooctanoates [RE(PFO)3] were ­developed and applied to the condensation reactions of indole with carbonyl compounds at ambient temperature. It was found that these catalysts could be completely recovered and reused without loss of catalytic activities.

Key words

rare earth perfluorooctanoate [RE(PFO)3] - indole - bis-indolylmethanes - aldehyde - ketones