English
Karnataka Board PUCPUC Science 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

Advertisements
Advertisements

Question

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

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

Chemical Equations/Structures
Advertisements

Solution

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

shaalaa.com
  Is there an error in this question or solution?
Chapter 9: Amines - Exercises [Page 279]

APPEARS IN

NCERT Chemistry Part 1 and 2 [English] Class 12
Chapter 9 Amines
Exercises | Q 9.9 (iii) | Page 279

RELATED QUESTIONS

How are propan-1-amine and propan-2-amine prepared from oxime?


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


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


Answer the following

Identify A and B in the following reactions.

\[\ce{C6H5CH2Br->[alco.][KCN]A ->[Na/ethanol]B.}\]


Answer the following

Explain Gabriel phthalimide synthesis.


Write reactions to bring about the following conversions.

Acetamide to Ethylamine


Identify compound 'B' in following series of reactions?

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


Identify the product obtained when benzyl chloride undergoes ammonolysis in presence of excess ammonia followed by the reaction with two moles of methyl iodide.


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


What is the molar mass of the amine formed when acetamide undergoes Hofmann bromamide degradation?


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?


The source of nitrogen in Gabriel synthesis of amines is ______.


The reagents that can be used to convert benzenediazonium chloride to benzene are:

(i) \[\ce{SnCl2/HCl}\]

(ii) \[\ce{CH3CH2OH}\]

(iii) \[\ce{H3PO2}\]

(iv) \[\ce{LiAlH4}\]


How will you bring out the following conversion?


How will you carry out the following conversions?


Which of the following reactions will not give a primary amine?


Ethylamine can be prepared by the action of bromine and caustic potash on which compound?


In the given reaction what is the X?

\[\begin{array}{cc}
\ce{O}\phantom{.......................}\\
||\phantom{.......................}\\
\phantom{}\ce{R - C - OH <-[H3O] Χ ->[H] RCH2NH2}
\end{array}\]


Write a short note on the following:

Ammonolysis.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×