Stereoselective Preparation of Spiro[4.4] Cyclic Compounds by the Photochemical Activation of Oxazoles
摘要:
A novel photocyclization of 2-aryloxazole derivatives linked with an alkene moiety through a three-atom spacer at the 5-position gave a range of functionalized spiro[4.4] cyclic compounds that included cyclopentane, tetrahydrofuran, and pyrrolidine moieties in moderate to high yields with excellent diastereoselectivity.