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CBSE Class 12 · 2008 · Delhi · Aldehydes Ketones and Carboxylic AcidsShort Answer

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Complete the reaction statements shown in the figure by giving the missing starting material, reagent or product (parts b and c as printed; part a is incomplete in the source).
Structure (b)
(b)
Structure (c)
(c)

Solution

Each line of the figure fixes two of {substrate, reagent, product}; supply the third:
• H/Pd–BaSO on an acid chloride → the aldehyde (Rosenmund);
• SnCl/HCl then HO on a nitrile → the aldehyde (Stephen);
• CrOCl on toluene → benzaldehyde (Etard).
Match the displayed members to one of these patterns and write the missing entry.

CBSE Class 12 Board · 2008 · Delhi · Subjective

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