This process can by begun by addition of Collins reagent or its namesake's reagent; both contain the hexavalent metal central to it. That metal can be activated in the presence of pyridinium hydrochloride under anhydrous conditions, but a sulfuric acid medium is generally used to increase the rate. 
This process can by begun by addition of Collins reagent or its namesake's reagent; both contain the hexavalent metal central to it. That metal can be activated in the presence of pyridinium hydrochloride under anhydrous conditions, but a sulfuric acid medium is generally used to increase the rate. Discovered by Bowden, not its namesake, in 1946, this reaction requires care as it is highly exothermic and leaves an extremely toxic residue. The steric bulk of tertiary alcohols precludes their participation in this reaction, and it is usually carried out in acetone. FTP, name this organic reaction in which primary alcohols are transformed into carboxylic acids and secondary alcohols to ketones under catalysis by chromium oxide.
This process can by begun by addition of Collins reagent or its namesake's reagent; both contain the hexavalent metal central to it.
Jones oxidation (prompt on oxidation)