M. Hirano et al., A CONVENIENT DEPROTECTION OF 1,3-DITHIANE DERIVATIVES WITH FERRIC NITRATE UNDER HETEROGENEOUS CONDITIONS, Synthetic communications, 27(9), 1997, pp. 1527-1533
1,3-Dithianes derived from aromatic, aliphatic, and alicyclic ketones
or aldehydes can be conveniently converted to the parent carbonyl comp
ounds with a combination of ferric nitrate and silica gel in hexane in
excellent to quantitative yields.