2008

Benzopyran derivativesR 0350 D-Camphor-Derived Triazolium Salts for Catalytic Intramolecular Crossed Alde-

hyde—Ketone Benzoin Reactions. — A series of triazolium salts is prepared from D-camphor and tested as catalysts for intramolecular crossed aldehyde-ketone benzoin reactions. Optimum reaction conditions A) are applied to a variety of aldehydes (I). — (LI, Y.; FENG, Z.; YOU*, S.-L.; Chem. Commun. (Cambridge) 2008, 19, 2263-2265; State Key Lab. Organomet. Chem., Shanghai Inst. Org. Chem., Chin. Acad. Sci., Shanghai 200032, Peop. Rep. China; Eng.) — M. Bohle

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