Home
Class 12
CHEMISTRY
It involves conversion of a carboxylic a...

It involves conversion of a carboxylic acid amide into an amine with a loss of a carbon atom on treatment with aqueous sodium hypobromite. THus Hoffmann result in shortening of a carbon chain.
`R-overset(O)overset("||")(C)-NH_(2) underset(NaOH)overset(Br_(2))(rarr) R-NH_(2)+NaBr+Na_(2)CO_(3)`
Mechanism of the reaction is


(Major) Product (A)

A

`Ph–NH_(2)`

B

`Ph–CH_(2)–NH_(2)`

C

`Ph–NH–CH_(3)`

D

`Ph – N (CH_(3))_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • AROMATIC COMPOUND

    MOTION|Exercise Exercise - 2 (Level-II)|29 Videos

  • AROMATIC COMPOUND

    MOTION|Exercise Exercise - 3|17 Videos

  • AROMATIC COMPOUND

    MOTION|Exercise Exercise - 4 | Level-II|16 Videos

  • ALKYI HALIDE

    MOTION|Exercise Exercise - 4 | Level-II|8 Videos

  • ATOMIC STRUCTURE

    MOTION|Exercise EXERCISE-4 (LEVEL-II)|18 Videos

Similar Questions

Explore conceptually related problems

It involves conversion of a carboxylic acid amide into an amine with a loss of a carbon atom on treatment with aqueous sodium hypobromite. THus Hoffmann result in shortening of a carbon chain. R-overset(O)overset("||")(C)-NH_(2) underset(NaOH)overset(Br_(2))(rarr) R-NH_(2)+NaBr+Na_(2)CO_(3) Mechanism of the reaction is Which of the following will not give Hoffmann bromamide rection ?

R-overset(O)overset(||)C-NH_(2)underset(HCl)overset(NaNO_(2))rarr A A is :

Me-overset(O)overset(||)C-O-CH_(2)-CH_(2)-overset(o+)NH_(2)overset(NaOH)rarr Q

The conversion of an amide by action of NaOH and Br_(2) to primary amine that has one carbon less than the starting amide is known as Hofmann-Bromamide reaction. R-overset(O)overset(||)(C)-NH_(2) underset(orNaOBr)overset(Br_(2)+NaOH) rarr R-NH_(2)+NaBr+Na_(2)Co_(3) , Find out X :

NH_(2)-overset(O)overset(||)C-NH_(2) underset(Cl_(2))overset(NaOH)rarr Major product is :

MOTION-AROMATIC COMPOUND-Exercise - 2 (Level-I)
  1. CHF(2) Br overset(OH^(-))(rarr) (A) [Intermediate] overset("Trans -2-b...

    Text Solution

    |

  2. Ph-underset(14)overset(O)overset("||")(C)-CHN(2) underset(H(2)O)overse...

    Text Solution

    |

  3. Which of the following will not give carbylamine reaction

    Text Solution

    |

  4. (A) Product (A) will be

    Text Solution

    |

  5. overset(I)overset("|")(PhCHBr) overset(PhC equiv CPh)underset("EtOK")(...

    Text Solution

    |

  6. Complete the following reaction

    Text Solution

    |

  7. Intermediate produced during reimer tiemann’s formlylation will be

    Text Solution

    |

  8. Which of the following compound doesn’t gives Hoffmann’s carbyl amine ...

    Text Solution

    |

  9. CH(3) – NH(2) + CHCl(3) + KOH rarr major product will be :

    Text Solution

    |

  10. What is the product of the following reaction ?

    Text Solution

    |

  11. It involves conversion of a carboxylic acid amide into an amine with a...

    Text Solution

    |

  12. It involves conversion of a carboxylic acid amide into an amine with a...

    Text Solution

    |

  13. The given is mechanism of Beckmann rearrangment. Reagent cannot b...

    Text Solution

    |

  14. The given is mechanism of Beckmann rearrangment. Rate determining...

    Text Solution

    |

  15. The given is mechanism of Beckmann rearrangment. Product (X) i...

    Text Solution

    |

  16. Text Solution

    |

  17. Product (A) will be

    Text Solution

    |

  18. Give the major organic product of the following re- action :

    Text Solution

    |

  19. CH(3)-overset(O)overset("||")(C)-CH(2) overset(CH(2)N(2))(rarr)(X) ove...

    Text Solution

    |

  20. Which of the following reaction represent incorrect major product.

    Text Solution

    |