Process for the preparation of four-membered cyclic ketones

Details Process for the preparation of four-membered cyclic ketones Process for the preparation of four-membered cyclic ketones

C - Chemistry, Metallurgy

07

C

260/576, 260/582

C07C 69/74 (2006.01) C07C 45/51 (2006.01)

Patent

CA 1110649

Abstract of the Disclosure A process for the preparation of a cyclobutanone of the formula Image in which R1 to R6 each independently is a hydrogen, halogen, cyano, alkoxy, alkoxycarbonyl, carboxamido, dialkylphosphono, alkyl, cycloalkyl, aryl, aralkyl or alkenyl radical, or two of them together with the carbon atom to which each is linked form a ring, comprising reacting an N,N-disubstituted carboxylic acid amide of the formula Image in which R7 and R8 each independently is an alkyl, cycloalkyl, alkenyl, aryl or aralkyl radical or together form a ring, with an inorganic acid halide, and then reacting, the product with a tertiary amine, an olefin of the formula Image ,

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