Abstract
Abstract ∝-(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 ∝-methylene esters or amides in a regioselective manner.
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