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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

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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 समीकरण/संरचनाएँ
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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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अध्याय 9: Amines - Exercises [पृष्ठ २७९]

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

संबंधित प्रश्न

Illustrate the following reaction giving suitable example in each case:Gabriel phthalimide synthesis


Give a plausible explanation for the following:

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


Arrange the following in the increasing order of their pKvalues:

C6H5NH2, C2H5NH2, C6H5NHCH3


Account for the following:
Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines.


Answer the following

Write a reaction to convert acetic acid into methylamine.


Answer the following

Explain the ammonolysis of alkyl halides.


The end product C of the following reaction is

\[\ce{C2H5NH2 ->[HNO2] A ->[PCl5] B ->[NH3][Alcohol] C}\]


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


Identify the major product (B).


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


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


For producing amines, the reaction of nitro compounds with iron scrap is preferred because:


The best reagent for converting, 2-phenylpropanamide into 1- phenylethanamine is ______.


Which of the following compounds is the weakest Brönsted base?


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 compound is expected to be most basic?


The amine 'A' when treated with nitrous acid gives yellow oily substance. The amine A is ______.


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


Write a short note on the following:

Ammonolysis


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