Journal of the American Chemical Society

Reduction of Enols. New Synthesis of Certain Methoxybenzsuberenes via Hydrogenation of Dehydroacetic Acids

GN Walker

Index: Walker Journal of the American Chemical Society, 1956 , vol. 78, p. 3201,3204

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Citation Number: 11

Abstract

acter of the carbonyl groups, as well as upon other influences which are discussed later. After some trial experiments it was found that keto-(or enol)-lactone V could be cyclized by means of polyphosphoric acid3 at 85". The reaction was slow and appeared to be accompanied by decomposition. A crystalline, neutral compound,'21,-Hzo04, mp 155-156", was obtained in 14% yield. This product was the expected benzsuberene lactone VII, as ...