"MnO2 is a highly chemoselective oxidant—allylic, benzylic, and propargylic alcohols are oxidized faster than saturated alcohols. The oxidation takes place under mild conditions in H2O, acetone, or CHCl3. … Ba[MnO4]2 possesses similar chemoselectivites as MnO2 in oxidations of alcohols, but it is more readily available and does not require special treatment for its activation. … Silver carbonate is especially useful for small-scale oxidations since the products usually are recovered in high purity by simply filtering the Ago and evaporating the solvent. … TEMPO is a commercially available nitroxyl radical-containing reagent that catalyzes the oxidation of primary and secondary alcohols in conjunction with co-oxidants.… Chemoselective oxidation of a secondary OH group in the presence of a primary OH group has been achieved with (NH4)2Ce(NO3)6, NaBrO3. Note, however, that the reagent does not tolerate the presence of double bonds. … Triphenylcarbenium salts (Ph3C+X-) selectively oxidize secondary t-butyl or triphenylmethyl (trityl) ethers derived from alcohols. The oxidation proceeds via initial hydride abstraction followed by loss of the group on oxygen. … Chemoselective oxidation of a secondary OH group in the presence of a primary OH group is possible with NaOCl in aqueous acetic acid."
January 1, 1970
https://en.wikiquote.org/wiki/Alcohol_oxidation