Question:
The reaction of aryl halide with sodium metal in dry ether to give biphenyl is known as
The reaction of aryl halide with sodium metal in dry ether to give biphenyl is known as
Show Hint
Aryl halides coupling with sodium form the Fittig reaction.
Updated On: Oct 1, 2026
- Swartz reaction
- Wurtz reaction
- Fittig reaction
- Wrutz-fittig reaction
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept:
Several named reactions couple halides using sodium metal in dry ether. Which name applies depends on the type of halide used.
Step 2: Key Formula or Approach:
Wurtz: two alkyl halides give an alkane. Wurtz-Fittig: an aryl halide plus an alkyl halide gives an alkyl benzene. Fittig: two aryl halides give a diaryl compound.
Step 3: Detailed Explanation:
Here the halide is an aryl halide, e.g. \(\text{C}_6\text{H}_5\text{Br}\), and it reacts alone.
\[ 2\text{C}_6\text{H}_5\text{Br} + 2\text{Na} \xrightarrow{\text{dry ether}} \text{C}_6\text{H}_5-\text{C}_6\text{H}_5 + 2\text{NaBr} \]
The product is biphenyl, so this is the Fittig reaction. Swarts reaction is halogen exchange using a metal fluoride, and it is unrelated to sodium coupling.
Final Answer:
The reaction is the Fittig reaction, option (C). \[ \boxed{\text{Fittig reaction}} \]
Several named reactions couple halides using sodium metal in dry ether. Which name applies depends on the type of halide used.
Step 2: Key Formula or Approach:
Wurtz: two alkyl halides give an alkane. Wurtz-Fittig: an aryl halide plus an alkyl halide gives an alkyl benzene. Fittig: two aryl halides give a diaryl compound.
Step 3: Detailed Explanation:
Here the halide is an aryl halide, e.g. \(\text{C}_6\text{H}_5\text{Br}\), and it reacts alone.
\[ 2\text{C}_6\text{H}_5\text{Br} + 2\text{Na} \xrightarrow{\text{dry ether}} \text{C}_6\text{H}_5-\text{C}_6\text{H}_5 + 2\text{NaBr} \]
The product is biphenyl, so this is the Fittig reaction. Swarts reaction is halogen exchange using a metal fluoride, and it is unrelated to sodium coupling.
Final Answer:
The reaction is the Fittig reaction, option (C). \[ \boxed{\text{Fittig reaction}} \]
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Haloalkanes and Haloarenes Questions
- The solubility (in ) of in a solution will be:
- Which of the following is not a thermodynamic coordinate?
- What is the name of the above reaction?
- In the presence of a catalyst, the heat evolved or absorbed during the reaction _______.
Identify allylic halide and vinylic halide.
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions