Journal of the American Chemical Society

Novel free radical ring-forming reaction of dichlorocyclobutanones and sequential ring expansion

P Dowd, W Zhang

Index: Dowd, Paul; Zhang, Wei Journal of the American Chemical Society, 1992 , vol. 114, # 25 p. 10084 - 10085

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Citation Number: 31

Abstract

We have discovered an unusual reaction sequence that interpolates the elements of ketene into a 1, 5-diene and forms a new seven-membered-ring ketone, as illustrated for 1, 5- cyclooctadiene (eq 1). Since we are unaware of any comparable sequence in the literature, our findings are reported here.