Enantioselective Synthesis of Bicyclo[6.1.0]nonane-9-carboxylic Acids via Me<sub>2</sub>AlOTf-Promoted Intramolecular Friedel−Crafts Alkylation of Arenes with the γ-Lactone Moiety of 3-Oxabicyclo[3.1.0]hexan-2-ones
作者:Eric Fillion、Rachel L. Beingessner
DOI:10.1021/jo0351419
日期:2003.11.1
acids via Me2AlOTf-promoted intramolecularFriedel-Craftsalkylation of tethered pi-nucleophiles with the gamma-lactone moiety of 3-oxabicyclo[3.1.0]hexan-2-ones is described. The approach begins with the enantioselective synthesis of 3-oxabicyclo[3.1.0]hexan-2-ones bearing a tethered pi-nucleophile at the 6-position by intramolecular Rh(II)-catalyzed cyclopropanation of allylic diazoacetates, prepared