Towards nucleophilic substitution reaction with KNH2 in liquid NH3, the more reactive substrate is :
Correct answer: A. C6H5-CH2-Cl
- A. C6H5-CH2-Cl
- B. C6H5-Cl
- C. t-Bu-Cl
- D. C6H5-CH = CH-Cl
Explanation
The Cl is attached to the alkyl group attached to the main ring, thus it is not directyl attached to the main ring. So, it is easier to remove. Also, benzyl & aryl substrates are more reactive toward SN reactions.
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About Alkyl Halides
Alkyl halides are named and related to their carbon-halogen structure, polarity and reactivity. The key reactions are nucleophilic substitution by SN1 and SN2 mechanisms and elimination by E1 and E2 mechanisms, including how substrate structure, nucleophile, base, solvent and temperature influence substitution versus elimination.
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