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

Give the structures of A, B and C in the following reaction: CH3CH2Br KCN-> A LiAlH4->B HNO2->0°C C - Chemistry

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प्रश्न

Give the structure of A, B and C in the following reaction:

\[\ce{CH3CH2Br ->[KCN] A ->[LiAlH4] B ->[HNO2][0^\circ C] C}\]

रासायनिक समीकरणे/रचना
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उत्तर

\[\ce{\underset{Bromoethane}{CH3CH2Br} ->[KCN] \underset{\underset{(A)}{{Cyanoethane}}}{CH3CH2CN} ->[LiAlH4] \underset{\underset{(B)}{Propan-1-amine}}{CH3CH2CH2NH2} ->[HNO2][0^\circ C] \underset{\underset{(C)}{Propan-1-ol}}{CH3CH2CH2OH}}\]

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पाठ 9: Amines - Exercises [पृष्ठ २७९]

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एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
पाठ 9 Amines
Exercises | Q 9.9 (iii) | पृष्ठ २७९

संबंधित प्रश्‍न

Give the structure of A, B and C in the following reaction:

\[\ce{C6H5NO2 ->[Fe/HCl] A ->[NaNO2 + HCl][273 K] B ->[H2O/H+][\Delta] C}\]


Give a plausible explanation for the following:

Why are amines less acidic than alcohols of comparable molecular masses?


Mention 'two' uses of propan-2-one.


Identify compound 'B' in following series of reactions?

\[\ce{Acetonitrile ->[Na/alcohol] A ->[NaNO2/dil.HCI] B}\]


Acetamide on reduction using Na/C2H5OH gives ____________.


Identify the product 'A' in the following reaction.

\[\ce{Aniline ->[(CH3CO)2O][Pyridine] A}\]


Which of the following amines exhibits maximum degree of intermolecular hydrogen bonding?


____________ can be prepared exclusively by Gabriel phthalimide synthesis.


Which of the following reactions is appropriate for converting benzamide to aniline?


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?


Best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is ______.


How will you bring out the following conversion?


How will you carry out the following conversion?


Acetamide and ethyl amide can be distinguished by reacting with.


Give reasons for the following:

Ammonolysis of alkyl halides is not a good method to prepare pure primary amines.


Which of the following amines can be prepared by Gabriel phthalimide reaction?


Write short note on the following:

Ammonolysis


Write a short note on Ammonolysis.


Write a short note on the following:

Ammonolysis


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