SYNTHESIS OF PHOTOCHROMIC BISFULGIMIDES BY THE CONDENSATION OF (3Z)-3-[1-(2,5-DIMETHYL-3-THIENYL)-ETHYLIDENE]-4-ISOPROPYLIDENE-2,5-FURA NDIONE WITH AROMATIC DIAMINES

摘要

The first representatives of thiophene derivatives with two fulgimide fragments in one molecule have been obtained by the condensation of (3Z)-3-[1-(2,5-dimethyl-3-thienyl)ethylidene]-4-isopropylidene-2,5-furan dione with aromatic diamines. The photochromic properties of the obtained compounds have been investigated and the effect of a spacer, linking the two fulgimide fragments, on the reaction rates of photocoloration and photodecoloration of these compounds has been studied.