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Chem. Commun., 2002, 1648 - 1649, DOI: 10.1039/b204982a

-Methylenation/Diels-alder tandem reaction promoted by ammonium salts generated in situ from secondary–tertiary diamines and alkoxymethyl chlorides

Hiroko Nakamura and Hisashi Yamamoto

A simple one-pot synthesis of spiranones from cycloketones and dienes promoted by an ammonium salt generated in situ from diamine and alkoxymethyl chloride through a tandem -methylenation/Diels–Alder reaction is described.

Graphical abstract image for this article (ID: b204982a)