Fluorescent bithiophene chromophores: synthesis and application in cd exciton chirality studies

Article abstract of DOI:10.3987/com-97-s57

Bithiophene chromophores were synthesized and used to derivatize NH₂ and OH groups in aminocyclohexane, (1R, 2R)-diaminocyclohexane, (1R, 2R)-trans-1,2-cyclohexanediol and methyl L-acosamidine for their application in the exciton chirality method. Schiff base, ester and amide derivatives were generated in good yields and were found to exhibit exciton-split CD curves. Besides their absorption at long wavelengths (red-shifted) in the visible range, the bithiophene derivatives showed fluorescence and solvatochromic properties.