1.

Which of the following amines can be prepared by Gabriel method ? (i)CH_3CH_2NH_2, (ii)(CH_3)_2CHNH_2 , (iii)(CH_3)_3CNH_2 , (iv)C_6H_5NH_2

Answer»

(i) and (iii)
(ii) and (IV)
(i),(ii) and (iii)
(i) and (ii)

Solution :For the PREPARATION of `MeCNH_2`, the required ALKYL halide is `Me_3CX` which will react with potassium phthalimide, a strong base, to form alkene rather than substituted product. For PREPARING `C_6H_5NH_2, C_6H_5Cl`will be the starting halide in which Cl is non-reactive.


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