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WHAT IS WUTZ , FITTING, WUTZ FITTING REACTION & ETARD REACTION

WHAT IS WUTZ , FITTING, WUTZ FITTING REACTION & ETARD REACTION

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Vasanth SR
askIITians Faculty 1335 Points
6 years ago

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This reaction allows the alkylation of aryl halides. The more reactive alkyl halide forms an organosodium first, and this reacts as a nucleophile with an aryl halide as the electrophile. Excess alkyl halide and sodium may be used if thesymmetricallycoupled alkanes formed as a side product may be separated readily.


The Étard Reaction is a chemical reaction that involves the direct oxidation of an aromatic or heterocyclic bound methyl group to an aldehyde using chromyl chloride. This reaction is usually performed to convert Toluene to Benzaldehyde.

Mechanism -
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When toluene is reacted with Chromyl Chloride then a chromium complex is formed (Etard Complex) whose hydrolysis gives Benzaldehyde.

Here Chromyl Chloride is used to form an organic complex (Etard Complex) which can undergo hydrolysis to form the desired compound (in this case Benzaldehyde).

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