Ring transformations of heterocyclic com
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Thomas Zimmermann; Lothar Hennig
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Article
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2002
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Journal of Heterocyclic Chemistry
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English
⚖ 184 KB
## Abstract The synthesis of pyrido[1,2‐__a__]indolium perchlorates **8,11** from 2,4,6‐triarylpyrylium perchlorates **1** and 2‐methyl‐3__H__‐indoles **6,9** in the presence of a basic condensing agent (anhydrous sodium acetate, piperidine acetate, triethylamine/acetic acid, triethylamine) in etha