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Chem. Commun., 2001, 2062 - 2063, DOI: 10.1039/b106669m

Steric acceleration of an uncatalysed ene reaction at room temperature

Nandeo Choony, Peter G. Sammes, Graham Smith and Robert W. Ward

The bulky trityl steric buttress is used to effect an intramolecular, uncatalysed ene reaction that operates at room temperature, whilst smaller buttresses require heat.