title: Stereospecificity and mechanism in cation radical Diels-Alder and cyclobutanation reactions.
abstract: [reaction: see text] The cation radical Diels-Alder and cyclobutanation reactions of cis- and trans-1,2-(diaryloxy)ethenes with a cyclic and an acyclic diene have been found to be stereospecific, in accord with a concerted cycloaddition mechanism.
authors.affiliation: Department of Chemistry and Biochemistry, The University of Texas at Austin, Austin, Texas 78712, USA. bauld@mail.utexas.edu
authors.forename: N L
authors.initials: NL
authors.lastname: Bauld
authors.forename: J
authors.initials: J
authors.lastname: Yang