Novel electro-oxidizable chiral N-substituted dicarbazoles and resulting electroactive films for covalent attachment of proteins

Novel chiral electro-oxidizable dicarbazoles functionalized by N-succinimidyl/phthalimidyl or pentafluorophenyl carboxylates 6a–c were synthesized from l-lysine methyl ester 1 and characterized electrochemically. The corresponding chiral polycarbazole films 8a–c constitute polymers suitable for covalent grafting of proteins, as demonstrated for bovine serum albumin as a model compound.