Syntheses of Functionalized Alkylidene cyclopropanes

By a Reaction Involving the Rearrangement of an Allylic selenoxide The transposition of allylic selenoxides to allyl alcohols is a well-established reaction which parallels the one described with sulfur analogs. It was found, however, that phenylselenoxy derivatives rearrange much more easily than their phenylthio or their methylseleno analogs. 

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