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Synthesis of spiropentacyclic indolines by cyclisation of 3,4-dimethoxyphenylacetyltryptamine
K M BISWAS
Published in -
1983
   
Issue: 2
Pages: 85 - 86
Abstract
Cyclisation of N-(3,4-dimethoxyphenylacetyl)tryptamine (4) with either phosphorus trichloride, or phosphoryl chloride, affords the spirocyclic indoline (12) together with small amounts of β-carboline derivatives, whereas with trifluoroacetic anhydride as reagent the spirocyclic indoline (13) is formed in quantitative yield.
About the journal
JournalJournal of the Chemical Society, Chemical Communications
Publisher-
ISSN0022-4936