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Paper | Regular issue | Vol 53, No. 10, 2000, pp.2201-2220
Published online, 1st January, 1970
DOI: 10.3987/COM-00-9008
A Concise Preparation of Yuehchukene and Its Analogues

Minoru Ishikura,* Katsuaki Imaizumi, and Nobuya Katagiri

*Faculty of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan


The palladium catalyzed carbonylative cross-coupling reaction of indolylborates (2) with vinyl triflates (3) afforded indol-2-yl ketones (4), which were subsequently converted to hexahydroindeno[2,1-b]indoles (5) with the aid of an acid. This protocol was well adapted for the total synthesis of yuehchukene.