A REMOVABLE FUNCTIONAL GROUP IN A PHOTOCHEMICAL MACROCYCLIC SYNTHESIS. REMOTE PHOTOCYCLIZATION WITH A PAIR SYSTEM OF PHTHALIMIDE AND 1,3-DITHIOLANYL GROUPS

Article abstract of DOI:10.1016/S0040-4020(01)91979-9

Based on a regioselective remote photocyclization of a pair system consisting of a phthalimide group and dithiolanyl group, a variety of aza-cyclic compounds with methylene, ester, or amide groups in their frameworks were synthesized.The dithiolanyl group provides a removable donor, which effects a needed reaction followed by removal to give a new carbon skeleton leaving little trace of the precursor form.