Synthesis 2014; 46(04): 489-495
DOI: 10.1055/s-0033-1340459
paper
© Georg Thieme Verlag Stuttgart · New York

Povarov Reaction of β-Enamino Esters and Isatin-3-imines for Diastereoselective Synthesis of Spiro[indoline-3,2′-quinolines]

Hong Gao
College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. of China   Fax: +86(514)87975244   eMail: cgyan@yzu.edu.cn
,
Jing Sun
College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. of China   Fax: +86(514)87975244   eMail: cgyan@yzu.edu.cn
,
Chao-Guo Yan*
College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. of China   Fax: +86(514)87975244   eMail: cgyan@yzu.edu.cn
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Publikationsverlauf

Received: 22. Oktober 2013

Accepted after revision: 18. November 2013

Publikationsdatum:
10. Dezember 2013 (online)


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Abstract

The p-toluenesulfonic acid catalyzed Povarov reaction of isatin-3-imines with β-enamino esters, which were generated in situ from the reaction of arylamines and methyl propiolate in eth­anol, afforded the polysubstituted spiro[indoline-3,2′-quinolines] in high yields and with high diastereoselectivity.

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