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4. Efficient Medium-Ring Cyclization under Non-High-Dilution Conditions Using SmI<INF>2</INF>

Author

Tamiya, H., Goto, K., and Matsuda, F.

Abstract

A general, efficient, and experimentally simple method for generating medium rings utilizing the SmI2-mediated Barbier-type coupling has been developed. Various eight- and nine-membered carbocycles and heterocycles are assembled with high efficiency via this protocol. Amazingly, the process does not require high-dilution conditions and almost quantitative yields of the frequently inaccessible medium-sized rings are obtained.

Published
2004

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