New access to allenes: With photocatalytic reductive radical-polar crossover as the strategy, a new protocol for the preparation of trisubstituted allenes has been nicely developed
A mild and efficient methodology for the bromination of phenols and alkenes has been developed utilizing visible light-induced photoredox catalysis. The bromine was generated in situ from the oxidation of Br− by Ru(bpy)33+, both of which resulted from the oxidative quenching process.