Benzylamine may be alkylated as shown in the following equation :

C₆H₅CH₂NH₂ + R—X →C₆H₅CH₂NHR

Which of the following alkylhalides is best suited for this reaction through S_N1 mechanism?

• C₆H₅CH₂Br is the is best-suited alkyl halides for this reaction through S_N1 mechanism because it has a bulky benzene ring which will be a good leaving group in the last step of alkylation and reinforces the formation of C₆H₅CH₂NHR.

• For example,R = CH₃

+ CH₃-X →

• With other 3 (i) CH₃Br(ii) C₆H₅Br(iv) C₂H₅ Br reaction will not be as effective as (iii)