Cover Picture: An Electrophilic Bromine Redox Catalysis for the Synthesis of Indole Alkaloid Building Blocks by Selective Aliphatic C−H Amination (Angew. Chem. Int. Ed. 48/2018)
Graphical Abstract
A giant step forward for bromine redox catalysis that enables intermolecular C−H amination reactions at previously inaccessible aliphatic positions is described by K. Muñiz et al. in their Communication on page 15891 ff. The approach is based on the formation of anionic bromine(I) catalysts by the stoichiometric oxidation of ammonium bromides with a bisphthalimidato iodine(III) oxidant. Crystal structures of the catalysts reveal the bulky ammonium counterions to have a shape that is comparable to Giacometti′s famous bronze sculpture L ′homme qui marche.
A giant step forward for bromine redox catalysis that enables intermolecular C−H amination reactions at previously inaccessible aliphatic positions is described by K. Muñiz et al. in their Communication on page 15891 ff. The approach is based on the formation of anionic bromine(I) catalysts by the stoichiometric oxidation of ammonium bromides with a bisphthalimidato iodine(III) oxidant. Crystal structures of the catalysts reveal the bulky ammonium counterions to have a shape that is comparable to Giacometti′s famous bronze sculpture L ′homme qui marche.
Photoredox Catalysis
Luminescent Materials
Synthetic Rubber
