Preparation of photocyclizable dianthracene derivatives of resorc[4]arenes which are potential photoswitches

Schafer C, Mattay J. Preparation of photocyclizable dianthracene derivatives of resorc[4]arenes which are potential photoswitches. PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES. 2004;3(4):331-333.Resorc[4] arenes have been difunctionalized on opposite sides of the macrocycle using two anthracene units, which undergo intramolecular dimerization on irradiation at 350 nm. Syntheses and time-dependent photochemical experiments are reported