ChemInform Abstract: Methoxy‐ and Dichloro‐Substituted Oxyallyl Intermediates.

Abstract

Solvolysis of both the chloride (I) or the mesylate (III) in basic 2,2,2‐trifluoroethanol affords the same product (II) by an enolization‐ionization mechanism; the oxyallyl intermediate (V) can be trapped by furan to give the cycloadduct (VI) as 95:5 mixture of endo‐ and exo‐isomers.