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Abstract
Recently, we required a convenient method for preparing the 3-formyl-cyclohexenone, 1, starting from dihydroresorcinol. The conversion of dihydroresorcinol into the cyclohexenone derivative 2, could be readily accomplished using the elegant method of Stork and Danheiser,1 however, existing methods for the transformation of the ketone group of 2 into the formyl group of 1 did not prove satisfactory.2 We describe here, a simple and general method for the transformation of 2 into 1 (Scheme I).