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Communication | Regular issue | Vol 2, No. 1, 1974, pp.21-26
Published online, 1st January, 1970
DOI: 10.3987/R-1974-01-0021
Cyclization of β-Ketosulfoxide. IV. Synthesis of Indole, Benzothiophene and Carbazole Derivatives

Yuji Oikawa, Osamu Setoyama, and Osamu Yonemitsu*

*Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan

Abstract

On acid-treatment, β-ketosulfoxides having pyrrole, thiophene and indole nuclei were converted to indoles, benzothiophenes and carbazoles, respectively, through intramolecular nucleophilic substitution.