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Which reagent can be used for the alkylation of aromatic nitro compounds
Options
(a) Methyl-sulfinyl carbanion
(b) Methyl-iodide
(c) Dimethyl-sulphate
(d) Methyl-lithium
Correct Answer:
Methyl-sulfinyl carbanion
Explanation:
Ar – NO₂ group is ring deactivating group. So it does not favour electrophilic alkylation in benzene ring . Therefore nitrobenzene undergoes nucleophilic alkylation through carbanion intermediate. So the reagent used is methyl sulfinyl carbaion.
Related Questions: - For the equilibrium, H₂O(l) ⇌ H₂O(g) at 1 atm and 298 K,
- The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled
- Which of the following yield both alkane and alkene
- When phenol reacts with phthalic anhydride in presence of H₂SO₄ and heated
- Isotonic solution have the same
Topics: Organic compounds containing Nitrogen
(87)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- For the equilibrium, H₂O(l) ⇌ H₂O(g) at 1 atm and 298 K,
- The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled
- Which of the following yield both alkane and alkene
- When phenol reacts with phthalic anhydride in presence of H₂SO₄ and heated
- Isotonic solution have the same
Topics: Organic compounds containing Nitrogen (87)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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