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Communication | Regular issue | Vol 4, No. 5, 1976, pp.1007-1011
Published online, 1st January, 1970
DOI: 10.3987/R-1976-05-1007
Benzo- and Indoloquinoline Derivatives. Part IX. A Novel Route to the Tribenzo[a,c,h]quinolizine System by Electrophilic and Photolytic Cyclisation of Immonium Salts

Robert Salsmans and Georges Van Binst*

*Laboratoium voor organische Chemie, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium

Abstract

Photocyclisation of immonium salts, followed by reduction, has been used successfully in the synthesis of tribenzo[a,c,h]quinolizine systems, in cases where the electrophilic cyclization failed.