Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET202022 Sep 2020Morning ShiftChemistryAldehydes and KetonesActual

Which among the following is a possible product during cross aldol condensation between propanal (as electrophile) and butanal (as nucleophile)?

Options

  1. A3-hydroxy-2-methyl hexanal
  2. B2-ethyl-3-hydroxy pentanal
  3. C3-hydroxy-2-methyl pentanal
  4. D2-ethyl-3-hydroxy hexanal

Correct answer

B. 2-ethyl-3-hydroxy pentanal

Step-by-step solution

CH ₃ CH ₂ CHO + CH ₃ CH ₂ CH ₂ CHO Propanal Butanal (Electrophile) (Nucleophile) aligned & 5 CH ₃ 4 C H ₂- OH C CH - CH ₂ CH ₃ C HCHO & 2-ethyl-3-hydroxy-pentanal & aligned Hence, the correct option is (2).

Practice Aldehydes and Ketones on Quantrex Academy →

More from Aldehydes and Ketones

Which one of the following is the correct statement? 2026Match the reactions in List I with the final products formed as given in List II. List I List II W C ₆ H ₅ CH ₃ (i) CrO ₃ + ( CH ₃ CO )₂ O ; (ii) H ₂ O + heat P R ₂ CO X RCOOC ₂ H 2026Identify products [P₁ ] and [P₂ ] formed when Benzonitrile undergoes the following reactions. 2026Which of the following is NOT TRUE about nucleophilic addition reactions of aldehydes? 2026Propanal on reaction with dilute NaOH, undergoes aldol condensation resulting in the formation of a compound A. Identify the correct structure of A and name of the compound. 2026Etard reaction is a method of preparation of benzaldehyde by oxidation of toluene. The oxidizing agent used in this reaction is: 2026What are X and P in the following reaction sequence? 2026C ₃ H ₆ (i) BH ₃; (ii) H ₂ O ₂/ NaOH P CrO ₃, anhydrous medium Q (i) CH ₃ MgBr ; (ii) H ₂ O R + Mg(OH)Br The organic compounds P, Q and R are 2026 Full Aldehydes and Ketones list All AP EAMCET PYQs