Advertisements
Advertisements
Question
In order to prepare a 1° amine from an alkyl halide with simultaneous addition of one \[\ce{CH2}\] group in the carbon chain, the reagent used as source of nitrogen is ______.
Options
Sodium amide, \[\ce{NaNH2}\]
Sodium azide, \[\ce{NaN3}\]
Potassium cyanide, \[\ce{KCN}\]
Potassium phthalimide, \[\ce{C6H4 (CO)2N– K+}\]
Advertisements
Solution
In order to prepare a 1° amine from an alkyl halide with simultaneous addition of one \[\ce{CH2}\] group in the carbon chain, the reagent used as source of nitrogen is Potassium cyanide, \[\ce{KCN}\].
Explanation:
Potassium cyanide, as cyanide on reduction with sodium metal in alcohol, produces amine with increased carbon atoms.
\[\ce{R - X ->[KCN - KX] R - CN ->[Na/C2H2OH] R - CH2NH2}\]
APPEARS IN
RELATED QUESTIONS
Illustrate the following reaction giving suitable example in each case:Gabriel phthalimide synthesis
Give the structures of A, B and C in the following reactions :
Accomplish the following conversion:
Nitrobenzene to benzoic acid
Give the structure of A, B and C in the following reaction:
\[\ce{CH3CH2Br ->[KCN] A ->[LiAlH4] B ->[HNO2][0^\circ C] C}\]
Mention 'two' uses of propan-2-one.
Mendius reaction is used to convert _____________
Amongst the following, the strongest base in aqueous medium is ______.
The best reagent for converting 2–phenylpropanamide into 2-phenylpropanamine 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) \[\ce{LiAlH4}\]
What is the best reagent to convert nitrile to primary amine?
Write following conversions:
acetanilide `->` p-nitroaniline
Assertion: Aromatic 1° amines can be prepared by Gabriel Phthalimide Synthesis.
Reason: Aryl halides undergo nucleophilic substitution with anion formed by phthalimide.
The Gabriels' phthalimide synthesis is used in the synthesis of
C6H5CONHCH3 can be converted into C6H5CH2NHCH3 by:-
Which of the following reaction DOES NOT involve Hoffmann bromamide degradation?
Methyl amine on reaction with chloroform in the presence of NaOH gives ______.
The amine 'A' when treated with nitrous acid gives yellow oily substance. The amine A is ______.
Amides can be converted into amines by the reaction named ______.
Write a short note on the following:
Ammonolysis
Write a short note on Ammonolysis.
