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Enones can be synthesized from tertiary allylic alcohols through the action of a variety of chromium(VI)-amine reagents, in a reaction known as the Babler oxidation. The reaction is driven by the formation of a more substituted double bond. (E)-Enones form in greater amounts than (Z) isomers because of chromium-mediated geometric isomerization ...
Chromium trioxide (also known as chromium(VI) oxide or chromic anhydride) is an inorganic compound with the formula CrO 3.It is the acidic anhydride of chromic acid, and is sometimes marketed under the same name. [6]
The complex is produced by treating chromium trioxide with pyridine. [2] The complex is diamagnetic. According to X-ray crystallography, the complex is 5-coordinate with mutually trans pyridine ligands.
The Sarett oxidation is an organic reaction that oxidizes primary and secondary alcohols to aldehydes and ketones, respectively, using chromium trioxide and pyridine.Unlike the similar Jones oxidation, the Sarett oxidation will not further oxidize primary alcohols to their carboxylic acid form, neither will it affect carbon-carbon double bonds. [1]
The reaction stoichiometry implicates the Cr(IV) species "CrO 2 OH −", which comproportionates with the chromic acid to give a Cr(V) oxide, which also functions as an oxidant for the alcohol. [ 6 ] The oxidation of the aldehydes is proposed to proceed via the formation of hemiacetal -like intermediates, which arise from the addition of the O ...
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