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Note | Regular issue | Vol 68, No. 4, 2006, pp.763-769
Published online, 3rd March, 2006
DOI: 10.3987/COM-05-S(T)53
Synthesis of Novel Symmetric Cyclic Indole-tetramers

Hidetaka Hiyoshi,* Takaaki Sonoda, and Shuntaro Mataka

*Advanced Materials Department, Ihara Chemical Industry Co., Ltd., 2256, Nakanogo, Fujikawa-cho, Ihara-gun, Shizuoka 421-3306, Japan


The reaction of 5-bromoindolin-2-one with phosphoryl chloride in chlorobenzene gave a novel symmetric isomer of a cyclic indole-tetramer. This novel isomer was used in Suzuki-Miyaura coupling reaction to give tetraarylated derivatives of the cyclic indole-tetramer.