The 2-oxocyclobutanecarboxylic acid keto-enol system in aqueous solution: a remarkable acid-strengthening effect of the cyclobutane ring

…, AJ Kresge, VA Nikolaev, VV Popik

Index: Chang; Kresge; Nikolaev; Popik Journal of the American Chemical Society, 2003 , vol. 125, # 21 p. 6478 - 6484

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Citation Number: 7

Abstract

Flash photolysis of 2-diazocyclopentane-1, 3-dione in aqueous solution produced 2- oxocyclobutylideneketene, which underwent hydration to the enol of 2- oxocyclobutanecarboxylic acid; the enol then isomerized to the keto form of this acid. Rates