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प्रश्न
The source of nitrogen in Gabriel synthesis of amines is ______.
विकल्प
Sodium azide, \[\ce{NaN3}\]
Sodium nitrite, \[\ce{NaNO2}\]
Potassium cyanide, \[\ce{KCN}\]
Potassium phthalimide, \[\ce{C6H4(CO)2N– K+}\]
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उत्तर
The source of nitrogen in Gabriel synthesis of amines is Potassium phthalimide, \[\ce{C6H4(CO)2N– K+}\].
Explanation:
Potassium phthalimide is the source of nitrogen in Gabriel’s synthesis.
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संबंधित प्रश्न
Write a short note on Hoffmann bromamide degradation.
Accomplish the following conversion:
Benzamide to toluene
Give the structure of A, B and C in the following reaction:
\[\ce{CH3CH2I ->[NaCN] A ->[OH-][Partial hydrolysis] B ->[NaOH + Br2] C}\]
Give the structure of A, B and C in the following reaction:
\[\ce{CH3CH2Br ->[KCN] A ->[LiAlH4] B ->[HNO2][0^\circ C] C}\]
Give a plausible explanation for the following:
Why are amines less acidic than alcohols of comparable molecular masses?
Explain the mechanism of action of hydroiodic acid on 3-methylbutan-2-ol.
Arrange the following in the increasing order of their pKb values:
C6H5NH2, C2H5NH2, C6H5NHCH3
Account for the following:
Gabriel phthalimide synthesis is not preferred for preparing aromatic primary amines.
Choose the most correct option.
Which of the following compounds will dissolve in aqueous NaOH after undergoing reaction with Hinsberg reagent?
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.
Name the process of breaking C-X bond by ammonia in preparation of amines.
Acetamide on reduction using Na/C2H5OH gives ____________.
Which of the following compounds is obtained when quaternary ammonium hydroxide is strongly heated?
Reduction of nitrobenzene by which of the following reagent gives aniline?
(i) \[\ce{Sn/HCl}\]
(ii) \[\ce{Fe/HCl}\]
(iii) \[\ce{H2 - Pd}\]
(iv) \[\ce{Sn/NH4OH}\]
How will you carry out the following conversions?
Assertion: Hoffmann’s bromamide reaction is given by primary amines.
Reason: Primary amines are more basic than secondary amines.
The Gabriels' phthalimide synthesis is used in the synthesis of
Ethylamine can be prepared by the action of bromine and caustic potash on which compound?
In the given reaction what is the X?
\[\begin{array}{cc}
\ce{O}\phantom{.......................}\\
||\phantom{.......................}\\
\phantom{}\ce{R - C - OH <-[H3O] Χ ->[H] RCH2NH2}
\end{array}\]
