Efficient Medium-Ring Cyclization Under Non-High-Dilution Conditions Using Sml(2)
Cheminform（2004）
摘要
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.
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