Journal of Heterocyclic Chemistry

New benz [g] indole and spiroketone heterocycles from acyl thioacetamides

EH Marten, CA Maggiulli

Index: Marten,E.H.; Maggiulli,C.A. Journal of Heterocyclic Chemistry, 1978 , vol. 15, p. 1277 - 1279

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Abstract

Abstract The acyl thioacetanilide 3 condensed with 2-bromotetralone to give the spiroketone 5. A similar reaction of the tetralone with the acyl-N-ethylthioacetamide 4 afforded small amounts of the unsaturated spiroketone 6 with the isomeric dihydrobenz [g] indole 7 as the major product. Compound 7 was aromatized to the benz [g] indole 8 in high yield.