Efficient and stable photocatalytic systems for reductive dechlorination of p-chlorobiphenyl by sodium borohydride
Acridine Derivatives (9,10-dihydro-10-methylacridine and acriflavine) act as efficient and stable photocatalysts for reductive dechlorination of p-chlorobiphenyl as well as dehalogention of bromochlorobenzenes with sodium borohydride in acetonitrile/H2O (9:1 v/v) at 298 K. In the case of acriflavine, the limiting quantum yield at irradiation wavelength λ = 350 nm has reached 0.63.