Introduction of a 3-alkoxycarbonyl-2-propenyl group at the ortho position of phenol and naphthol via .ALPHA.-aryloxy-.GAMMA.-butyrolactone. Application to syntheses of (.+-.)-nanaomycin A and a 1-anthracenone.
Introduction of a 3-alkoxycarbonyl-2-propenyl group at the ortho position of phenol and naphthol via .ALPHA.-aryloxy-.GAMMA.-butyrolactone. Application to syntheses of (.+-.)-nanaomycin A and a 1-anthracenone.