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प्रश्न
Hoffmann Bromamide Degradation reaction is shown by ______.
विकल्प
\[\ce{ArNH2}\]
\[\ce{ArCONH2}\]
\[\ce{ArNO2}\]
\[\ce{ArCH2NH2}\]
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उत्तर
Hoffmann Bromamide Degradation reaction is shown by \[\ce{ArCONH2}\].
Explanation:
Hoffmann invented a method for producing primary amines by treating an amide with bromine in an aqueous or ethanolic sodium hydroxide solution. An alkyl or aryl group migrates from the amide's carbonyl carbon to the nitrogen atom during this degradation reaction.
\[\ce{C4H5CONH2 ->[Br2 + NaOH] C4H5NH2}\]
APPEARS IN
संबंधित प्रश्न
Accomplish the following conversion:
Benzyl chloride to 2-phenylethanamine
Give the structures of A, B and C in the following reaction:
\[\ce{CH3COOH ->[NH3][\Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\]
Account for the following:
Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines.
Answer in one sentence.
Which amide does produce ethanamine by Hofmann bromamide degradation reaction?
Answer the following
Explain Gabriel phthalimide synthesis.
The following amines is the product of Gabriel phthalimide synthesis.
Mendius reaction is used to convert _____________
What product is formed when \[\ce{R - C ≡ N}\] is hydrolysed?
Which of the following amines cannot be prepared by Gabriel phthalimide synthesis?
The reagents that can be used to convert benzenediazonium chloride to benzene are:
(i) \[\ce{SnCl2/HCl}\]
(ii) \[\ce{CH3CH2OH}\]
(iii) \[\ce{H3PO2}\]
(iv) \[\ce{LiAlH4}\]
Account for the following:
Aniline cannot be prepared by the ammonolysis of chlorobenzene under normal conditions.
Which of the following compound is expected to be most basic?
When primary amines are treated with HCl, the product obtained is which of the following?
- Phenyl methenamine
- N, N - Dimethylaniline
- N - Methyl aniline
- Benzenamine
Choose the correct order of the basic nature of the above amines.
The amine 'A' when treated with nitrous acid gives yellow oily substance. The amine A is ______.
Write the name of the product formed by the action of LiAlH4/ether on acetamide.
Write short note on the following:
Ammonolysis
Write a short note on the following:
Ammonolysis
Write a short note on Ammonolysis.
Assertion: Amimonolysis of alkyl halides involves the reaction between alkyl halides and alcoholic ammonia.
Reason: Ammonolysis of alkyl halides produces secondary amines only.
