Oxiranes from Methylenation of the Ester Carbonyl Group by Diazomethane
Esters suitably substituted by electronegative groups were found to react with diazomethane with the anchimeric assistance of a ?-system or a trifluoromethyl group close to the ester oxygen to yield 2-alkoxy-2-substituted-oxiranes in good to excellent yields without catalysts.
Strazzolini, Paolo,Verardo, Giancarlo,Giumanini, Angelo G.
p. 3321 - 3325
(2007/10/02)
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