Synthesis and photochromic properties of novel nonsymmetric dihetarylethenes based on benzindole and thiophene

Abstract

ul. Chekhova, 344006 Rostov on Don, Russian FederationNovel nonsymmetric dihetarylethenes 3 (5 methoxy 1,2 dimethyl 1H benzo[g]indol 3 yl) 4 (3 thienyl) furan 2,5 dione and 1 alkyl and 1 aryl 3 (5 methoxy 1,2 dimethyl 1H benzo[g]indol 3 yl 4 (3 thienyl) 1(H) pyrrole 2,5 diones were synthesized. The substitution of the furandione moiety for pyrroledione gives rise to the radiation and photochemical channels of deactivation of the electron excitation energy of dihetarylethenes. The products of photolysis of pyrrolediones undergo recyclization in both the ground and excited states.