Advertisements
Advertisements
प्रश्न
Write short notes on the following Hofmann’s bromamide reaction
उत्तर १
Hoffmann bromamide reaction - When an amide is treated with bromine in an aqueous or ethanolic solution of sodium hydroxide, a primary amine with one carbon atom less than the original amide is produced. This degradation reaction is known as Hoffmann bromamide reaction. This reaction involves the migration of an alkyl or aryl group from the carbonyl carbon atom of the amide to the nitrogen atom.
उत्तर २
Hoffmann’s bromamide reaction: When an amide is treated with bromine in alkali solution, it is converted to a primary amine that has one carbon atom less than the starting amide. This reaction is known as Hoffinann’s bromamide degradation reaction.
APPEARS IN
संबंधित प्रश्न
Write a short note on Hoffmann bromamide degradation.
Illustrate the following reaction giving suitable example in each case:Gabriel phthalimide synthesis
Accomplish the following conversions Nitrobenzene to benzoic acid
Explain the mechanism of action of hydroiodic acid on 3-methylbutan-2-ol.
Explain the following reaction with a suitable example.
Hofmann elimination reaction
____________ can be prepared exclusively by Gabriel phthalimide synthesis.
In aqueous phase the order of basic strength of alkylamine is ______.
Which of the following reagents is used in Mendius reduction reaction of alkyl cyanide?
Quaternary ammonium salt is formed:
Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?
What is the product when \[\ce{C6H5CH2NH2}\] reacts with \[\ce{HNO2}\]?
Identify A and B in the following reaction.
Match the reactions given in Column I with the statements given in Column II.
| Column I | Column II | ||
| (i) | Ammonolysis | (a) | Amine with lesser number of carbon atoms |
| (ii) | Gabriel phthalimide synthesis | (b) | Detection test for primary amines. |
| (iii) | Hoffmann Bromamide reaction | (c) | Reaction of phthalimide with \[\ce{KOH}\] and \[\ce{R-X}\] |
| (iv) | Carbylamine reaction | (d) | Reaction of alkylhalides with \[\ce{NH3}\] |
Ethylamine can be prepared by the action of bromine and caustic potash on which compound?
- Phenyl methenamine
- N, N - Dimethylaniline
- N - Methyl aniline
- Benzenamine
Choose the correct order of the basic nature of the above amines.
Which of the following statement(s) is/are incorrect in case of Hofmann bromamide degradation?
Write short note on the following:
Ammonolysis
Write a short note on the following:
Ammonolysis
Write a short note on the following:
Ammonolysis
Write a short note on the following:
Ammonolysis
