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Benzamide (A) is prepared by heating ben...

Benzamide (A) is prepared by heating benzoic acid with ammonia. It undergoes the following reactions:
`A underset("reaction 1")overset(Br_(2),KOH, Delta)(to) B underset(273-278K "reaction 2")overset(NaNO_(2),HCl)(to) C underset(Delta "reaction 3")overset(H_(3)PO_(2),H_(2)O)(to) D underset(anhyd AlCl_(3) "reaction 4")overset(CH_(3)Cl)(to) E`
E on heating with acidic `KMnO_(4)` gives back benzoic acid.
1. Write the name of reaction 1.

Text Solution

AI Generated Solution

To solve the question, we will analyze the reactions step by step and identify the name of the first reaction involving Benzamide (A). ### Step 1: Identify the First Reaction The first reaction involves Benzamide (A) reacting with bromine (Br₂) in the presence of potassium hydroxide (KOH) and heat (Δ). ### Step 2: Name the Reaction This specific reaction is known as the **Hofmann Bromamide Reaction**. In this reaction, an amide (Benzamide in this case) is converted into an amine by the action of bromine and a strong base (KOH). ...
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Benzamide (A) is prepared by heating benzoic acid with ammonia. It undergoes the following reactions: A underset("reaction 1")overset(Br_(2),KOH, Delta)(to) B underset(273-278K "reaction 2")overset(NaNO_(2),HCl)(to) C underset(Delta "reaction 3")overset(H_(3)PO_(2),H_(2)O)(to) D underset(anhyd AlCl_(3) "reaction 4")overset(CH_(3)Cl)(to) E E on heating with acidic KMnO_(4) gives back benzoic acid. 3. Write the chemical reaction for reaction 2 if temperature is 298K.

Benzamide (A) is prepared by heating benzoic acid with ammonia. It undergoes the following reactions: A underset("reaction 1")overset(Br_(2),KOH, Delta)(to) B underset(273-278K "reaction 2")overset(NaNO_(2),HCl)(to) C underset(Delta "reaction 3")overset(H_(3)PO_(2),H_(2)O)(to) D underset(anhyd AlCl_(3) "reaction 4")overset(CH_(3)Cl)(to) E E on heating with acidic KMnO_(4) gives back benzoic acid. 2. Write the chemical reaction for reaction 3

Knowledge Check

  • Identify A ,B ,C and D and the following reactions : "Nitrobenzene " overset( Sn // HCI)(to) A overset( Br_(2))underset( "Excess ") (to) B overset( NaNO_(2) // HCI) underset(273k) (to) C overset( H_(3) PO_(2) // H_(2)O ) (to) D

    A
    A = aniline , B = 2,4,6- tribromoniline
    C= 2,4,6 - tribromo benzene diazonium chloride
    D= 1,3,5- tribromo benzene
    B
    A= benzene B = 2,4,6- tribromo benzene
    C= 2,4,6- trichloro benzene
    D= 2,4,6- trichloro phenol
    C
    A= aniline B= P- bromoaniline
    C= P- bromobenzene diazonium chloride
    D= p- bromo phenol
    D
    A = aniline B= p- bromo aniline
    C= p- bromobenzene diazonium chloride
    D= bromo benzene

  • Write the major product of the following reaction C_(6)H_(5)CH_(2)CH_(3)underset(NaCN)overset(Br_(2)//Delta)to

    A
    `C_(6)H_(5)-underset(CN)underset(|)(CH)-CH_(3)`
    B
    `C_(6)H_(5)-CH_(2)-CH_(2)-CN`
    C
    `o-(CN)C_(6)H_(4)CH_(2)CH_(3)`
    D
    `m-(CN)C_(6)H_(4)CH_(2)CH_(3)`

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    A
    B
    C
    D

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    Benzamide (A) is prepared by heating benzoic acid with ammonia. It undergoes the following reactions: A underset("reaction 1")overset(Br_(2),KOH, Delta)(to) B underset(273-278K "reaction 2")overset(NaNO_(2),HCl)(to) C underset(Delta "reaction 3")overset(H_(3)PO_(2),H_(2)O)(to) D underset(anhyd AlCl_(3) "reaction 4")overset(CH_(3)Cl)(to) E E on heating with acidic KMnO_(4) gives back benzoic acid. 4. What is the product B? Is it more or less basic than C_(2)H_(5)NH_(2) ?

    Benzamide (A) is prepared by heating benzoic acid with ammonia. It undergoes the following reactions: A underset("reaction 1")overset(Br_(2),KOH, Delta)(to) B underset(273-278K "reaction 2")overset(NaNO_(2),HCl)(to) C underset(Delta "reaction 3")overset(H_(3)PO_(2),H_(2)O)(to) D underset(anhyd AlCl_(3) "reaction 4")overset(CH_(3)Cl)(to) E E on heating with acidic KMnO_(4) gives back benzoic acid. 5. Give reaction for the conversion of E into benzyl alcohol.

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