Receioed October 6, 1981 1, l-Dicarbonyl-(ester, ketone, lactone) substituted alkenes are prepared from the corresponding saturated 1-phenylsulfinyl derivatives. These are formed from precursor sulfides, which can be efficiently prepared either by oxidation of 8-hydroxy-a- phenylsulfenylcarbonyl compounds or direct acylation of a-phenylsulfenyl enolate anions with acid chlorides Some of the title compounds can be isolated and then reacted while ...
