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Abstract
Chiral spiro indane and benzazepine compounds in isoindolinone series were prepared easily by n-cationic cyclization of the N-acyliminium ions (5-9) or the acylium ion (17) precursors with trifluoroacetic acid or aluminumtrichloride, respectively. The stereochemistry and the ratio of diastereomeric mixtures observed during these process were also discussed.
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