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Q12. the decreasing order of the reactivity of the following compounds towards electrophiles is: h 3 (a) 2>1>3 (b) 2>3>1 (c) 3>1>2 (d) 1>2>3
Q12. The decreasing order of the reactivity of the following compounds towards electrophiles is: H 3 (a) 2>1>3 (b) 2>3>1 (c) 3>1>2 (d) 1>2>3
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Dinesh khalmaniya 1
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option D Explanation-- Oxygen, being more electronegative than nitrogen, distributes more negative charge density upon itself and less upon the ring, thus stabilizing the carbocation intermediate less, making furan less reactive towards EAS than pyrrole.
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Priyanshu kumar Best Answer
The aromatic five-membered heterocycles all undergo electrophilic substitution, with a general reactivity order: pyrrole >> furan > thiophene > benzene. Pyrrole is more reactive than pyridine for electrophilic substitution reactions because of the stability of the protonated pyrrole intermediate.
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Achyut ranjan gogoi![best-answer]()
option d is correct. pyrrole is most reactive towards electrophiles because it has least aromatic character among the three. Pyridine has more aromatic character so more stable and least reactive