Enantioselective electrodes: synthesis and use of polypyrroles prepared from chiral pyrrole derivatives

Facile preparation and fluorescence properties of a soluble oligopyrrole derivative

“…Additionally, the radical cation of the pyrrole ring attached to methylene group could be stabilized after the oxidization due to the electron-donating effect of methylene group. It would reduce the coupling activity of the corresponding pyrrole ring [16]. As a result, the soluble oligomer of MDPP was formed mainly through the coupling of the pyrrole ring attached to methylene group in our experiment, which could be depicted approximately in Fig.…”

“…18-20 C) was crucial, which gave rise to the slower polymerization process compared with that at the room temperature (28 AE 2 C) [12,15]. Moreover, the substituent affects the coupling of pyrrole species from two aspects, including the steric effect and the electronic effect [16]. The monomer MDPP contains two pyrrole rings with different substituents in the N-bit.…”

Asymmetric heterogeneous carbene transfer catalyzed by optically active ruthenium spirobifluorenylporphyrin polymers

“…30,31 Thus, electrochemical asymmetric induction can be achieved by the use of chiral electrodes. [32][33][34] Various chiral polymers, mainly polythiophene 35 and polypyrrole derivatives, 30,36 have been described for the preparation of chiral electrodes capable of enantioselective recognition or electrosyntheses. 37 Although catalytic asymmetric reactions with chiral electropolymers have given some satisfactory results, 38 in no case were the polymers removed from the electrode.…”

Novel chiral PEDOTs for selective recognition of 3,4-dihydroxyphenylalanine enantiomers: Synthesis and characterization

“…From then on, a series of chiral conducting polymers including polyacetylenes (PAs), 2-4 polyanilines (PAn), 5,6 polyfluorenes (PFs), 7 polythiophenes (PTs), [8][9][10][11][12][13][14][15][16][17][18][19][20] and thienylenephenylene copolymers [21][22][23] have been widely reported in terms of chiroptical properties. In spite of their short history, chiral conducting polymers have been made tremendous advancement in developing various chiral materials with particular properties in several potential applications as a new rising field, including chiral discrimination, [24][25][26][27] chiral sensors, 28 asymmetric catalysis, [29][30][31][32] as novel stationary phases for chiral separations, optoelectronic devices and batteries. 33 Up to now, researchers have also reported lots of useful routes to prepare chiral conducting polymers which allows us to have an extensive tool-box to explore this rapidly developing field.…”