New reagent system containing CrO3 and syntheses of neo-lignans
Abstract
Oxidations of 1-arylprop-1-enes by the new reagent systems, CrO3–HBF4–MeCN or CrO3–HCIO4–MeCN gave the 4-aryltetraiones (1a) and (1c), and the tetrahydrofuran (3) which are precursor molecules for aryltetrahydronaphthalene and tetrahydrofuran neo-lignans.