Advertisements
Advertisements
Question
Account for the following:
Gabriel phthalimide synthesis is preferred for synthesising primary amines.
Solution
Gabriel phthalimide synthesis results in the formation of 1° amine only. 2° or 3° amines are not formed in this synthesis. Thus, a pure 1° amine can be obtained. Therefore, Gabriel phthalimide synthesis is preferred for synthesizing primary amines.
APPEARS IN
RELATED QUESTIONS
Give reasons for the following: (CH3)2NH is more basic than (CH3)3N in an aqueous solution.
Arrange the following: C2H5NH2, C2H5OH, (CH3)3N – in the increasing order of their boiling point
Arrange the following in increasing order of their basic strength :
- Write structures of different isomeric amines corresponding to the molecular formula C4H11N.
- Write the IUPAC names of all the isomers.
- What type of isomerism is exhibited by different pairs of amines?
Arrange the following:
In increasing order of boiling point:
C2H5OH, (CH3)2NH, C2H5NH2
Write a short note on ammonolysis.
Accomplish the following conversion:
Benzene to m-bromophenol
Give reason (CH3)2NH is more basic than (CH3)3N in an aqueous solution.
Arrange the following in the increasing order of their pKb values:
C6H5NH2, C2H5NH2, C6H5NHCH3
Answer in one sentence.
Arrange the following amines in increasing order of boiling points.
n-propylamine, ethylmethyl amine, trimethylamine.
Tertiary amines have lowest boiling points because ________________
The CORRECT decreasing order of solubility in water will be ____________.
Assertion: N-Ethylbenzene sulphonamide is soluble in alkali.
Reason: Hydrogen attached to nitrogen in sulphonamide is strongly acidic.
Which of the following compound gives a secondary amine oh reduction?
Which of the following have less melting point than amine?
Which one of the following compounds will liberate CO2, when treated with NaHCO3?
Write short note on the following:
Ammonolysis
