Title: A Concise Approach to the Dibenzo[1,4]Dioxocin Structure
VOLUME: 3 ISSUE: 11
Author(s):Anna Zawisza, Loic Toupet and Denis Sinou
Affiliation:Laboratoire de Synthese Asymetrique, associe au CNRS, UMR 5181, CPE Lyon, Universite Claude Bernard Lyon 1, 43, boulevard du 11 Novembre 1918, 69622 Villeurbanne cedex, France.
Keywords:Dibenzo[1,4]dioxocin, palladium, annulation, asymmetry
Abstract: The palladium(0)-catalyzed heteroannulation of 2,2-diphenol and the biscarbonate of butenediol afforded quantitatively rac-(SA,6R)-6-vinyl-6,7-dihydrodibenzo[e,g][1,4]dioxocine. The use of chiral ligands gave this unique stereoisomer with ee up to 30%.
