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5. Select methods to prepare n-butylamine without complications? I. NH, - [NH,Br] 1. KOH 2. butylbromide...

Question

5. Select methods to prepare n-butylamine without complications? I. NH, - [NH,Br] 1. KOH 2. butylbromide...

5. Select methods to prepare n-butylamine without complications? I. NH, - [NH,Br] 1. KOH 2. butylbromide 3.Hydrazine 1. NaN3
6. Select the two products expected from the reaction shown. HO A. I and VI B. III and V C. II and I D. IV and V E. Illand VI
7. Which reaction sequence will provide (E)-1-pentenyl benzene? D - Br Php NH; PPh H2 * - Lindlar catalyst A. IN BV C. I and
5. Select methods to prepare n-butylamine without complications? I. NH, - [NH,Br] 1. KOH 2. butylbromide 3.Hydrazine 1. NaN3 2. LAH 3.H20 BH(CN) 1.03 2. DMS A. I, III and IV B. II, III and IV C. I and IV D. II, IV and V E. III, IV and V
6. Select the two products expected from the reaction shown. HO A. I and VI B. III and V C. II and I D. IV and V E. Illand VI F. II and V
7. Which reaction sequence will provide (E)-1-pentenyl benzene? D - Br Php NH; PPh H2 * - Lindlar catalyst A. IN BV C. I and V D. II and III E. I F. I, IV and v

Answers

5. Option B, ii( Gabriel pthalimide synthesis gives only 1° amine) , ii( reduction of azide gives primary amine) and IV(sodium caynoborohydride reduce the imine into amine)

6. Option D

Reaction of ketone with alpha hydrogen and secondary amine gives Enamine

7. Option C


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