MHT CET202521 Apr 2025Morning ShiftChemistryHaloalkanes and HaloarenesActual
Which from the following reaction is a Fittig reaction?
Options
- A2 CH ₃ Cl +2 Na [ ether ] dry C ₂ H ₆+2 NaCl
- B2 C ₆ H ₅ Cl +2 Na [ ether ] dry ( C ₆ H ₅ )₂+2 NaCl
- CC ₆ H ₅ Cl + C ₂ H ₅ Cl +2 Na [ ether ] dry C ₆ H ₅ C ₂ H ₅+2 NaCl
- DCH ₃ Cl + C ₂ H ₅ Cl +2 Na [ ether ] dry CH ₃- C ₂ H ₅+2 NaCl
Correct answer
B. 2 C ₆ H ₅ Cl +2 Na [ ether ] dry ( C ₆ H ₅ )₂+2 NaCl
Step-by-step solution
Fittig reaction couples two aryl halides with sodium in dry ether to form diaryls. Analyzing each reaction: A) 2 CH ₃ Cl + 2 Na dry ether C ₂ H ₆ + 2 NaCl yields an alkane via the Wurtz reaction . B) 2 C ₆ H ₅ Cl + 2 Na dry ether ( C ₆ H ₅)₂ + 2 NaCl produces a diaryl, matching the Fittig reaction . C) C ₆ H ₅ Cl + C ₂ H ₅ Cl + 2 Na dry ether C ₆ H ₅ C ₂ H ₅ + 2 NaCl yields an alkylarene, characteristic of the Wurtz-Fittig reaction . D) CH ₃ Cl + C ₂ H ₅ Cl + 2 Na dry ether CH ₃- C ₂ H ₅ + 2 NaCl yields an alkane v