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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:
Benzamide to toluene
Write structures of compounds A and B in each of the following reactions:
Answer the following
Explain the ammonolysis of alkyl halides.
Write reactions to prepare ethanamine from Acetonitrile.
Write reactions for the preparation of ethanamine using Gabriel phthalimide synthesis.
Why cannot aniline be prepared by Gabriel phthalimide synthesis?
Identify compound 'B' in following series of reactions?
\[\ce{Acetonitrile ->[Na/alcohol] A ->[NaNO2/dil.HCI] B}\]
The end product C of the following reaction is
\[\ce{C2H5NH2 ->[HNO2] A ->[PCl5] B ->[NH3][Alcohol] C}\]
Which of the following reactions is appropriate for converting benzamide to aniline?
In aqueous phase the order of basic strength of alkylamine is ______.
Quaternary ammonium salt is formed:
Amongst the following, the strongest base in aqueous medium is ______.
The source of nitrogen in Gabriel synthesis of amines is ______.
Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?
(i) Acetyl chloride/pyridine followed by reaction with conc.\[\ce{H2SO4 }\] + conc. \[\ce{HNO3}\].
(ii) Acetic anyhdride/pyridine followed by conc.\[\ce{H2SO4}\] + conc.\[\ce{HNO3}\].
(iii) Dil. HCl followed by reaction with conc.\[\ce{H2SO4}\] + conc.\[\ce{HNO3}\].
(iv) Reaction with conc.\[\ce{HNO3}\] + conc.\[\ce{H2 SO4}\].
Suggest a route by which the following conversion can be accomplished.
In the given reaction what is the X?
\[\begin{array}{cc}
\ce{O}\phantom{.......................}\\
||\phantom{.......................}\\
\phantom{}\ce{R - C - OH <-[H3O] Χ ->[H] RCH2NH2}
\end{array}\]
Which of the following reaction DOES NOT involve Hoffmann bromamide degradation?
Write the name of the product formed by the action of LiAlH4/ether on acetamide.
Amides can be converted into amines by the reaction named ______.
Write the name of reduction product formed when ethyl cyanide is treated with sodium and alcohol.
