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प्रश्न
Write a short note on the following:
Gabriel phthalimide synthesis
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उत्तर
Gabriel synthesis is used for the preparation of primary amines. Phthalimide, on treatment with ethanolic potassium hydroxide, forms potassium salt of phthalimide, which on heating with alkyl halide followed by alkaline hydrolysis, produces the corresponding primary amine. Aromatic primary amines cannot be prepared by this method because aryl halides do not undergo nucleophilic substitution with the anion formed by phthalimide.
संबंधित प्रश्न
In the following
The compound ‘B’ is _______.
(A) Propan–1–amine
(B) Propan–2–amine
(C) Isopropylamine
(D) Dimethylamine
Give reasons for the following:
CH3NH2 is more basis than C6H5NH2.
Choose the most correct option.
Which type of amine does produce N2 when treated with HNO2?
What is the action of nitrous acid on the following compounds?
Isopropyl amine
How are amines classified depending on the functional group? Give one example of each class of amines.
\[\ce{Aniline + benzoylchloride ->[NaOH] C6H5 - NH - COC6H5}\] this reaction is known as ____________.
When aniline reacts with acetic anhydride the product formed is ____________.
Write a short note on the following.
Schotten-Baumann reaction
Write a short note on the following.
Carbylamine reaction
How will you distinguish between primary secondary and tertiary aliphatic amines?
Account for the following.
Although amino group is o- and p-directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.
Arrange the following:
In increasing order of solubility in water:
C6H5NH2, (C2H5)2NH, C2H5NH2
Arrange the following.
In increasing order of boiling point C6H5OH, (CH3)2NH, C2H5NH2.
Arrange the following.
In decreasing order of basic strength
How will you prepare propan-1-amine from propanamide?
How will you prepare propan-1-amine from 1-nitropropane?
How will you convert diethylamine into N, N-diethyl acetamide?
(C2H5)2CHNH2. The following amine can be classified as:
Classify the following amine as primary, secondary or tertiary:
Which among the following is the strongest Bronsted base?
Write short note on the following:
Ammonolysis
Name the distinguishing test for differentiating 1° amine from 2° and 3° amine.
Write short note on the following.
Ammonolysis
Write short note on Ammonolysis.
Write short note on the following:
Ammonolysis
Write a short note on the following.
Ammonolysis
Write a short note on the following.
Ammonolysis
