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AP EAMCET201825 Apr 2018Morning ShiftChemistryAldehydes and KetonesActual

The reagent used for the conversion of allyl alcohol into propenal is

Options

  1. AO 3 / H 2 O - Zn dust
  2. BDIBAL - H
  3. CClO 2 Cl 2 / H 3 O +
  4. DC 5 H 5 NH + CrO 3 Cl -

Correct answer

D. C 5 H 5 NH + CrO 3 Cl -

Step-by-step solution

The reagent which is used for the conversion of allyl alcohol into propenal is C 5 H 5 NH + CrO 3 Cl - [ PCC (pyridinium chlorochromate)]. CH 2 = CH - CH 2 - OH Allyl   alcohol → PCC CH 2 = CH - CHO Propenal Here, the reagent used should convert - CH 2 - OH into - CHO (oxidation) without affecting the double bonds. PCC :

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