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NEET2010ChemistryAldehydes and KetonesActual

Which of the following reactions will not result in the formation of carbon-carbon bonds ?

Options

  1. AReimer-Tiemann reaction
  2. BCannizaro reaction
  3. CWurtz reaction
  4. DFriedel-Crafts acylation

Correct answer

B. Cannizaro reaction

Step-by-step solution

(a) Reimer-Tiemann reaction, (Here, a new C - C bond is formed.) (b) Cannizaro reaction, 2 HCHO Conc. NaOH CH ₃ OH + HCOONa (No new C - C bond is formed in this reaction.) (c) Wurtz reaction, 2 RX + dry Na Ether R - R (One new C - C bond is formed.) (d) Friedel-Crafts acylation, Thus, among the given reactions, only Cannizaro reaction does not involve the formation of a new C - C bond.

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