p–nitrofluorobenzene is more reactive than its meta isomer in S N Ar reaction with CH 3…
Chemistry · JEE Advanced · NTA Exams — Alkyl and Aryl Halides
p–nitrofluorobenzene is more reactive than its meta isomer in SNAr reaction with CH3ONa because
- nitro group from para position is in resonance with lone pair of fluorine.
- nitro group from para position stabilizes the benzene carbanion intermediate.
- nitro group from para position exert greater electronwithdrawing inductive effect than from meta position
- nitro group from para position gives less steric hindrance than from meta position to the attack of nucleophile.
Answer
(B) nitro group from para position stabilizes the benzene carbanion intermediate., (D) nitro group from para position gives less steric hindrance than from meta position to the attack of nucleophile.
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