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प्रश्न
The oxidation of toluene to benzaldehyde by chromyl chloride is called ______.
विकल्प
Etard reaction
Riemer-Tiemann reaction
Stephen’s reaction
Cannizzaro’s reaction
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उत्तर
The oxidation of toluene to benzaldehyde by chromyl chloride is called Etard reaction.
Explanation:
The oxidation of toluene (C6H5CH3) with chromyl chloride (CrO2Cl2) in CCl4 or CS2 to give benzaldehyde is called Etard reaction. In this reaction, the chromyl chloride first forms a brown complex. which is separated and then decomposed with H2O to give benzaldehyde (C6H5CHO).
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संबंधित प्रश्न
Write the product in the following reaction
Write the structure of the product of the following reaction:
Write the reaction involved in the Stephen reduction
Can Gatterman-Koch reaction be considered similar to Friedel Craft’s acylation? Discuss.
The general formula CnH2NO2 could be for open chain
Aldehydes are the first oxidation products of ______.
The reagent in friedel - craft reaction is:
Predict the reagent for carrying out the following transformations:
Benzoyl chloride to Benzaldehyde
Assertion (A): Strong oxidising agents oxidise toluene and its derivatives to benzoic acids.
Reason (R): It is possible to stop the oxidation of toluene at the aldehyde stage with suitable reagents.
Select the most appropriate answer from the options given below:
An organic compound with molecular formula \[\ce{C7H7NO2}\] exists in three isomeric forms, the isomer ‘A’ has the highest melting point of the three. ‘A’ on reduction gives compound ‘B’ with molecular formula \[\ce{C7H9N}\]. ‘B’ on treatment with \[\ce{NaNO2/HCl}\] at 0-5° C to form compound ‘C’. On treating C with \[\ce{H3PO2}\], it gets converted to D with formula \[\ce{C7H8}\], which on further reaction with \[\ce{CrO2Cl2}\] followed by hydrolysis forms ‘E’ \[\ce{C7H6O}\]. Write the structure of compounds A to E. Write the chemical equations involved.
