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The Jones oxidation is an organic reaction for the oxidation of primary and secondary alcohols to carboxylic acids and ketones, respectively. It is named after its discoverer, Sir Ewart Jones. Jones reagent is a solution of chromium trioxide in dilute sulfuric acid and acetone. A mixture of potassium dichromate and dilute sulfuric acid can also be used. The solvent acetone markedly affects the properties of the chromic acid. The oxidation is very rapid, quite exothermic, and the yields are typically high. The reagent rarely oxidizes unsaturated bonds. ==Stoichiometry== Jones reagent will convert primary and secondary alcohols to aldehydes and ketones, respectively. Depending on the reaction conditions, the aldehydes may then be converted to carboxylic acids. For oxidations to the aldehydes and ketones, two equivalents of chromic acid oxidize three equivalents of the alcohol: : 2 HCrO4− + 3 RR'C(OH)H + 8 H+ + 4 H2O → 2 ()3+ + 3 RR'CO For oxidation of primary alcohols to carboxylic acids, one equivalent of Jones reagent is required for each substrate. The aldehyde is an intermediate. :4 HCrO4− + 3 RCH2OH + 16 H+ + 11 H2O → 4 ()3+ + 3 RCOOH The inorganic products are green, characteristic of chromium(III) aquo complexes.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Jones oxidation」の詳細全文を読む スポンサード リンク
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