SIMPLE SYNTHESIS OF α-METHYLENE ESTERS AND AMIDES FROM METHACRYLIC DERIVATIVES VIA TOSYLATED INTERMEDIATES
α-(Tosylmethyl)acrylic acid methyl ester or N-isopropylamide (obtained by a tandem iodosulfonylation-dehydroiodination of methyl methacrylate or N-isopropylacrylamide) react with Grignard reagents or sodium diethyl malonate to give the corresponding α-met