Pure Appl. Chem., 2003, Vol. 75, No. 8, pp. 1077-1084
doi:10.1351/pac200375081077
Cation-dependent photochromic properties of novel ditopic receptors*
O. A. Fedorova, Y. V. Fedorov, E. N. Andrjukhina, S. P. Gromov, and M. V. Alfimov
Photochemistry Center of Russian Academy of Sciences, Novatorov str., 7a, Moscow, 119421, Russia
Abstract:
Novel crown-containing 2-styrylbenzothiazoles were prepared to obtain optical ditopic receptors that can bind alkaline-earth metal cations by a crown ether fragment and could serve as host for the heavy metal cations and proton owing to the presence of the heterocyclic part. Photochemical transformations of the ditopic receptors depend on the type of metal cations present in solution. They include trans–cis-isomerization, [2+2]-cycloaddition, and electrocyclic reaction.
*Lectures presented at the XIXth IUPAC Symposium on Photochemistry, Budapest, Hungary, 1419 July 2002. Other presentations are published in this issue, pp.9991090.
All articles from the XIXth IUPAC Symposium on Photochemistry, Budapest, Hungary, 14–19 July 2002.