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Communication | Special issue | Vol 42, No. 1, 1996, pp.113-116
Published online, 1st January, 1970
DOI: 10.3987/COM-95-S34
Short Step Synthesis of 4-Substituted Indoles Using Palladium-catalyzed C-C Bond Forming Reaction

Kazuyuki Doi and Miwako Mori

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

Abstract

Enol triflate of N-tosyl-4-oxo-tetrahydroindole (2) was a good precursor for a synthesis of 4-substituted indoles. Various functional groups were introduced to form corresponding indoles using palladium-catalyzed carbonylation and a cross-coupling reaction followed by dehydrogenation by palladium on charcoal.