title: Photochemical cyclization with release of carboxylic acids and phenol from pyrrolidino-substituted 1,4-benzoquinones using visible light.
abstract: Visible light irradiation of 5-acyloxymethyl- and 5-phenoxymethyl-2-pyrrolidino-1,4-benzoquinones effects photoisomerization to labile oxazolidines, which undergo elimination of carboxylate or phenolate leaving groups in high yields to generate trappable o-quinone methide intermediates. [reaction: see text]
authors.affiliation: Department of Chemistry, Marquette University, Milwaukee, WI 53201-1881, USA.
authors.forename: Yugang
authors.initials: Y
authors.lastname: Chen
authors.forename: Mark G
authors.initials: MG
authors.lastname: Steinmetz