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Etard Reaction...

Etard Reaction

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(a) Write the reactions involved in the following : (i) Etard reaction. (ii) Stephen reduction. (b) How will you convert the following is not more than two steps : (i) Benzoic acid to benzaldehyde. (ii) Acetophenone to benzoic acid. (iii) Ethanoic acid to 2-hydroxyethenoic acid.

(a) Write the reactions involved in the following: (i) Etard reaction (ii) Stephen reduction (b) How will you convert the following in not more than two steps: (i) Benzoic acid to Benzaldehyde (ii) Acetophenone to Benzoic acid (iii) Ethanoic acid to 2-Hydroxyethanoic acid.

Knowledge Check

  • Assertion : Etard reaction helps to stop the oxidation of toluene at the aldehyde stage. Reason : Chromyl chloride oxidises methyl group to a chromium complex, which on hydrolysis gives corresponding benzaldehyde.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • (a) Phthaldeyde overset(Conc.NaOH)(to) Product (to) Cannizzaro reaction (b) alpha - Methylacylohexanone underset(Delta)overset(NaOH)(to) Product (to) Aldol condensation ( c) Toluene underset(H_(3)O^(+))overset(CrO_(2)Cl_(2)//CS_(2))(to) Product (to) Etard reaction (d) Benzene +CO+HCloverset(AlCl_(3))(to) Product to Gattermann's Koch reaction (e) Benezene +HCN+HCloverset(AlCl_(3))(to) Product to Gattermann's aldehyde synthesis Which of the following is correct set :

    A
    a,b,c,d
    B
    a,b,d,e,
    C
    a,b,c,e
    D
    a,b,c,d,e

  • Toluene by Etard's reaction gives :

    A
    ortho-cresol
    B
    benzoic acid
    C
    benzyl alcohol
    D
    benzoic acid

    • Similar Questions

    Explore conceptually related problems

    (a) Write the product(s) in the following reactions : (i) (iii) CH_(3)-CH=CH-CN overset("(a) DIBAL - H")underset("(b) "H_(2)O)rarr? (b) Give simple chemical tests to distinguish between the following pairs of compounds: (i) Butanal and Butan-2-one (ii) Benzoic acid and Phenol Or (a) Write the reactions involved in the following : (i) Etard reaction (ii) Stephen reduction (b) How will you convert the following in not more than two steps: (i) Benzoic acid to Benzaldehyde (ii) Acetophenone to Benzoic acid (iii) Ethanoic acid to 2-Hydroxyethanoic acid

    Name the oxidising agent in Etard's reaction.

    In Etard's reaction toluene is oxidised to benzaldehyde using

    What is the main reactant in the prepartion of benzaldehyde by Etard's reaction?

    In Etard's reaction toluene is oxidised to benzaldehyde using

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