Synthesis 2014; 46(08): 1059-1066
DOI: 10.1055/s-0033-1340815
paper
© Georg Thieme Verlag Stuttgart · New York

Facile Synthesis of Spiro[indane-2,1′-pyrrolo[2,1-a]isoquinolines] via Three-Component Reaction of Isoquinolinium Salts, Indane-1,3-dione, and Isatins

Xiao-Hua Wang
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: 24. Dezember 2013

Accepted after revision: 22. Januar 2014

Publikationsdatum:
10. Februar 2014 (online)


Abstract

A series of novel 2′-aryl-2′-(2-oxo-1,2-dihydro-3H-indol-3-ylidene)-2′,3′-dihydro-10b′H-spiro[indene-2,1′-pyrrolo[2,1-a]isoquinoline]-1,3-diones were efficiently synthesized by three-component reactions of in situ generated N-phenacylisoquinolinium bromides with indane-1,3-dione and isatins in ethanol with triethylamine as the base. A domino reaction mechanism for the formation of the spiro compounds was rationally proposed.

Supporting Information