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Abstract:
Low temperature reactions of ethyl dihaloacetates with carbonyl compounds in
the presence of zinc/silver-graphite give α-halo-β-hydroxyalkanoates, which are
readily converted into glycidates by base. Under the same conditions ethyl
(bromo)(trimethylsilyl) acetate with aldehydes and ketones forms α,β-unsaturated esters by a Reformatsky-Peterson reaction combination.