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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

What is the best reagent to convert nitrile to primary amine?

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प्रश्न

What is the best reagent to convert nitrile to primary amine?

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उत्तर

On treatment of nitriles with strong reducing agents such as lithium aluminium hydride in either of sodium metal in alcohol, primary amines are obtained.

\[\ce{\underset{Alkyl nitrile}{R - CN} + 4[H] ->[Na/C2H5OH][or LiAH4/ether]  R - Cl2NH2}\]

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पाठ 13: Amines - Multiple Choice Questions (Type - I) [पृष्ठ १८९]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 13 Amines
Multiple Choice Questions (Type - I) | Q 41 | पृष्ठ १८९

संबंधित प्रश्‍न

How is ethyl amine prepared from methyl iodide?


Write a short note on Hoffmann bromamide degradation.


Identify the compounds 'A' and 'B' in the following equation:


Give the structures of A, B and C in the following reactions :


Answer the following

Explain Gabriel phthalimide synthesis.


Which of the following reagents is used in Mendius reduction reaction of alkyl cyanide?


Which of the following amines cannot be prepared by Gabriel phthalimide synthesis?


Which of the following reagents is used in Hofmann's elimination reaction of amines?


Nitro compounds are reduced by iron scrap and hydrochloric acid to yield one of the following compounds:


Which of the following methods of preparation of amines will give same number of carbon atoms in the chain of amines as in the reactant?


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.\[\ce{H2 SO4}\].


Write following conversions:

nitrobenzene `->` acetanilide


How will you carry out the following conversion?


Which of the following statement(s) is/are incorrect in case of Hofmann bromamide degradation?


Write the name of the product formed by the action of LiAlH4/ether on acetamide.


Which of the following would not be a good choice for reducing nitrobenzene to aniline?


Identify the compo ds A and B in the following reactions:

\[\ce{A ->[Nitrating mixture] B ->[(i) Sn/cone. HCI][(ii) NaOH] Aniline}\]


Write a short note on the following:

Ammonolysis


Write a short note on Ammonolysis.


Write short notes on the following:

Ammonolysis 


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