Advertisements
Advertisements
प्रश्न
What is the best reagent to convert nitrile to primary amine?
Advertisements
उत्तर
On treatment of nitriles with strong reducing agents such as lithium aluminium hydride in either of sodium metal in alcohol, primary amines are obtained.
\[\ce{\underset{Alkyl nitrile}{R - CN} + 4[H] ->[Na/C2H5OH][or LiAH4/ether] R - Cl2NH2}\]
APPEARS IN
संबंधित प्रश्न
How are propan-1-amine and propan-2-amine prepared from oxime?
Accomplish the following conversion:
Benzamide to toluene
Give the structure of A, B and C in the following reaction:
\[\ce{C6H5N2Cl ->[CuCN] A ->[H2O/H+] B ->[NH3][\Delta] C}\]
Give the structures of A, B and C in the following reaction:
\[\ce{CH3COOH ->[NH3][\Delta] A ->[NaOBr] B ->[NaNO2/HCl] C}\]
Why cannot aromatic primary amines be prepared by Gabriel phthalimide synthesis?
Arrange the following in the increasing order of their pKb values:
C6H5NH2, C2H5NH2, C6H5NHCH3
Give the structures of A, B and C in the following reactions :

Choose the most correct option.
Which of the following compounds will dissolve in aqueous NaOH after undergoing reaction with Hinsberg reagent?
Explain the following reaction with a suitable example.
Hofmann elimination reaction
What product is formed when \[\ce{R - C ≡ N}\] is hydrolysed?
The reduction of alkyl cyanide with sodium and ethanol to give primary amines is, ____________.
Which of the following reagents is used in Mendius reduction reaction of alkyl cyanide?
Quaternary ammonium salt is formed:
Write following conversions:
nitrobenzene `->` acetanilide
How will you carry out the following conversion?

Ethylamine can be prepared by the action of bromine and caustic potash on which compound?
Which of the following compound is expected to be most basic?
When primary amines are treated with HCl, the product obtained is which of the following?
Which of the following compound gives pink colour on reaction with phthalic anhydride in cone. H2SO4 followed by treatment with NaOH?
Write short note on the following.
Ammonolysis.
