Potassium peroxydisulfate
See also: ammonium peroxydisulfate, tetrabutylammonium peroxydisulfate
Recent Literature

Various anilides have been directly ortho-acetoxylated with acetic acid as the acetate
source and K2S2O8 as the oxidant in the
presence of
Pd(OAc)2 as catalyst. The amide group is an elegant directing group to convert aromatic sp2 C-H bonds into C-O bonds.
G.-W. Wang, T.-T. Yuan, X.-L. Wu, J. Org. Chem., 2008,
73, 4717-4720.

A scalable, direct functionalization of various quinones with several boronic
acids proceeds readily at room temperature in an open flask using catalytic
silver(I) nitrate in the presence of a persulfate co-oxidant. The scope with
respect to quinones is broad, with a variety of alkyl- and arylboronic acids
undergoing efficient cross-coupling.
Y. Fujiwara, V. Domingo, I. B. Seiple, R. Gianatassio, M. Del Bel, P. P. S.
Baran, J. Am. Chem. Soc., 2011,
133, 3292-3295.
