Scope and Mechanism of the (4+3) Cycloaddition Reaction of Furfuryl Cations
作者:Johan M. Winne、Saron Catak、Michel Waroquier、Veronique Van Speybroeck
DOI:10.1002/anie.201104930
日期:2011.12.9
It all adds up: Furfuryl alcohols are revealed as direct reaction partners for a wide range of conjugated dienes in a (4+3) cycloaddition motif (see scheme). This novel Lewis acid promoted process gives straightforward access to various polycyclic skeletons containing a seven‐membered ring. A plausible cationic stepwise mechanism was confirmed by DFT calculations.