A copper-catalyzed Friedel–Crafts propargylation/hydroamination/aromatization sequence is described. In the presence of a catalytic amount of CuI, this sequential reaction can convert ethynyl benzoxazinanones and indoles into a diverse set of 3,3′-biindoles with high efficiency and selectivity. Moreover, the synthesis of other indole–heteroaryl molecules and the catalytic asymmetric formation of axially
The photocyclization of alkynylanilines catalyzed by an aggregated PtII-based octahedral cage has been shown to mimic bio-enzyme catalysis by aggregated biological macromolecules. The aggregated supramolecular species exhibits a higher photocatalytic efficiency than dispersed metal-organic cages without aggregation.
One-pot synthesis of arylated 1-methyl-1H-indoles by Suzuki–Miyaura cross-coupling reactions of 2,3-dibromo-1-methyl-1H-indole and 2,3,6-tribromo-1-methyl-1H-indole
Arylated 1-methyl-1H-indoles were prepared by Suzuki-Miyaura cross-coupling reactions of 2,3-dibromo-1-methyl-1H-indole and 2,3,6-tribromo-1-methyl-1H-indole. The reactions proceed with very good regioselectivity in favour of position 2. (C) 2013 Elsevier Ltd. All rights reserved.