U. Pischel et al., THE PHOTOGENERATION OF ARYLTROPYLIUM IONS - A POTENTIAL PHOTO-SWITCH FOR SUPRAMOLECULAR ASSEMBLIES BASED ON DONOR-ACCEPTOR INTERACTION, Chemical communications, (15), 1997, pp. 1383-1384
The photogeneration of aryltropylium cations with lifetimes strongly d
epending on the donor capacity of the aryl substituent has been achiev
ed by photolysing the corresponding 7-methoxycycloheptatrienes 2, 3 an
d 4.