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प्रश्न
Hoffmann Bromamide Degradation reaction is shown by ______.
पर्याय
\[\ce{ArNH2}\]
\[\ce{ArCONH2}\]
\[\ce{ArNO2}\]
\[\ce{ArCH2NH2}\]
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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
Write a short note on the following:
Hoffmann’s bromamide reaction
Arrange the following in the increasing order of their pKb values:
C6H5NH2, C2H5NH2, C6H5NHCH3
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?
Write reactions to bring about the following conversions.
Acetamide to Ethylamine
Why cannot aniline be prepared by Gabriel phthalimide synthesis?
Explain the following reaction with a suitable example.
Hofmann elimination reaction
Which of the following amines forms a clear solution when treated with benzene sulphonyl chloride and excess of potassium hydroxide?
Which of the following reagents is used in Hofmann's elimination reaction of amines?
Which of the following reactions does NOT yield an amine?
Given below are two statements labelled as Assertion (A) and Reason (R).
Assertion (A): Alkyl halides are insoluble in water.
Reason (R): Alkyl halides have halogen attached to sp3 hybrid carbon.
Select the most appropriate answer from the options given below:
Benzylamine may be alkylated as shown in the following equation:
\[\ce{C6H5CH2NH2 + R - X -> C6H5CH2NHR}\]
Which of the following alkylhalides is best suited for this reaction through SN1 mechanism?
Amongst the given set of reactants, the most appropriate for preparing 2° amine is ______.
Reduction of aromatic nitro compounds using \[\ce{Fe}\] and \[\ce{HCl}\] gives ______.
How will you carry out the following conversions?
The Gabriels' phthalimide synthesis is used in the synthesis of
Give reasons for the following:
Ammonolysis of alkyl halides is not a good method to prepare pure primary amines.
Which of the following reaction DOES NOT involve Hoffmann bromamide degradation?
What is the IUPAC name of \[\ce{(CH3)2 - N - CH3}\]?
Which of the following would not be a good choice for reducing nitrobenzene to aniline?
