Novel Intramolecular Cycloaddition Reactions of Arylamino-Substituted Fischer Chromium Carbenes.-Depending on the substitution pattern of the starting material, either substituted indoles such as (II) (metathesis reaction) or quinolines such as (IV) and (V) are obtained from a novel cyclization reaction of the Fischer chromium carbenes (I) or (III), having an 1-alkenyl substituent in the ortho position of the benzene ring, under thermal conditions. -(SOEDERBERG, B. C.; HELTON, E. S.; AUSTIN, L. R.; ODENS, H. H.; J.
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