Which of the following bases is the strongest in an aqueous medium?
Which of the following is the weakest Bronsted base?
Benzylamine may be alkylated as shown in the following equation?
Which of the following alkyl halides is best suited for this reaction through SN1 mechanism?
The reagent among the following that does not reduce an aryl nitro compound to an amine is:
1. H2(excess) / Pt
2. LiAlH4 in ether
3. Fe and HCI
4. Sn and HCI
In order to prepare a 1o amine from an alkyl halide with the simultaneous addition of one CH2 group in the carbon chain, the reagent used as a source of nitrogen is-
1. Sodium amide, NaNH2
2. Sodium azide, NaN3
3. Potassium cyanide, KCN
4. Potassium phthalimide,
The source of nitrogen in Gabriel synthesis of amines is
(1) sodium amide, NaN3
(3) sodium uzide, NaNO2
(3) potassium cyanide, KCN
(4) potassium phthalimide
Amongst the given set of reactants, the most appropriate for preparing 2o amine is
1. 2o R - Br + NH3
2. 2oR — Br + NaCN followed by H2/Pt
3. 1o R — + RCHO followed by H2/Pt
4. 1o R — Br(2 mol) + potassium phthalimide followed by O+/ heat
Which reagent is most effective in converting 2-phenylpropanamide into 2-phenylpropanamine?
1. Excess H2
2. Br2 in aqueous NaOH
3. Iodine in the presence of phosphorus
4. LiAlH4 in ether
The best reagent for converting, 2-phenylpropanamide into 1-phenylethanamine is .... ....
1. Excess H2 / Pt
2. NaOH /
3. NaBH4 / Methanol
4. LiAlH4 / Ether
Hofmann bromamide degradation reaction is shown by