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JIPMER2009ChemistryAldehydes and Ketones

The reaction, C ₆ H ₅ CHO + CH ₃ COOC ₂ H ₅ C ₆ H ₅ CH = CHCOOC ₂ H ₅ , is called

Options

  1. ABenzoin condensation
  2. BClaisen condensation
  3. CCannizaro's reaction
  4. DPerkin reaction

Correct answer

B. Claisen condensation

Step-by-step solution

Claisen condensation : Aromatic aldehyde condenses with esters having -hydrogen atoms like ethyl acetate, in the presence of metallic Na and C ₂ H ₅ OH to form esters of , -unsaturated acids. array r benzaldehyde C ₆ H ₅ CHO + ethyl acetate H ₂ CH - COOC ₂ H ₅ [ C ₂ H ₅ OH ] Na ethyl cinnamate C ₆ H ₅ CH = CHCOOC ₂ H ₅+ H ₂ O array

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