2003 Ring closure reactions

Ring closure reactionsO 0130 Polarizing the Nazarov Cyclization: Efficient Catalysis under Mild Conditions.

— Copper triflate catalyzes the cyclization of a variety of divinyl ketones in chlorinated solvent to afford the corresponding cyclopentenone derivatives. — (HE, W.; SUN, X.; FRONTIER*, A. J.; J. Am. Chem. Soc. 125 (2003) 47, 14278-14279; Dep. Chem., Univ. Rochester, Rochester, NY 14627, USA; Eng.) — Klein

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