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Shunpei Nobusue, Dr. Akihiro Shimizu, Prof. Kenji Hori, Dr. Ichiro Hisaki, Prof. Mikiji Miyata and Prof. Yoshito Tobe Oxidative Cyclodimerization After Tandem Cyclization of Dehydrobenzo[14]annulenes Induced by Alkyllithium Angewandte Chemie International Edition 52

Version of Record online: 28 FEB 2013 | DOI: 10.1002/anie.201210233

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After eight: Reactions of dehydrobenzo[14]annulenes induced by the addition of n-butyllithium led to the discovery of an unprecedented oxidative cyclodimerization, which forms eight-membered ring products in up to 30 % yield. The product contains two indeno[2,1-a]fluorene components connected by a single and a double bond, which result from three transannular bond formations.

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