The adducts between ketones and the anion derived from [(methoxymethyl)sulfonyl]benzene undergo efficient, regioselective rearrangement to give α-methoxyketones when treated with ZrCl4 and HfCl4; this new procedure allows the sulfone-mediated homologation methodology to be applied to monocyclic and acyclic ketones.
J. G. Montana, N. Phillipson and R. J. K. Taylor, J. Chem. Soc., Chem. Commun., 1994, 2289 DOI: 10.1039/C39940002289
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