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Beilstein J. Org. Chem. 2021, 17, 866–872, doi:10.3762/bjoc.17.72
Graphical Abstract
Scheme 1: Radical addition of Ph2PPPh2 and Ph2P(X)PPh2 to unsaturated C–C bonds.
Scheme 2: The addition of Ph2P(O)PPh2 (1) to 1-octyne (2a).
Scheme 3: Phosphinylphosphination of various terminal alkynes 2 with 1. aIsolated yields. V-40 = 1,1’-azobis(...
Scheme 4: Attempted radical addition to internal alkynes and insight into the addition to 2n.
Scheme 5: A plausible reaction pathway for the radical addition of Ph2P(O)PPh2 to terminal alkynes.
Beilstein J. Org. Chem. 2020, 16, 544–550, doi:10.3762/bjoc.16.51
Scheme 1: Projected synthetic routes for 3,6,13,16-tetrasubstituted tetrabenzo[a,d,j,m]coronenes.
Scheme 2: Reported syntheses of 2,7,12,17-tetrasubstituted tetrabenzo[a,d,j,m]coronenes.
Scheme 3: C–H tetraarylation of anthraquinone (1).
Scheme 4: C–H diarylation of 1,4-diarylanthraquinones 5.
Figure 1: Normalized UV–vis absorption spectra of 7aa, 7bb, and 7ba.
Figure 2: Effects of the concentration and the temperature on the 1H NMR spectra of 7aa.