Abstract
AbstractLewis acid‐catalyzed ring‐opening reactions of cyclobutanones were mostly achieved through cleavage of a single C2−C3 bond to deliver cyclic products. Herein, an unprecedented Lewis acid catalyzed synergistic cleavage of both C2−C3 bonds in 3‐arylcyclobutanones was realized under participation of water, providing a series of aryl alkyl ketones in mild conditions. A broad scope of substrates decorated with various substituents were well accommodated. Mechanistic proposal including the function of water was unambiguously validated by experimental verification.
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