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KCET2021ChemistryAldehydes and Ketones

The product ' A ' gives white precipitate when treated with bromine water. The product ' B ' is treated with barium hydroxide to give the product C . The compound C is heated strongly to form product D . The product D is

Options

  1. A4-methylpent-3-en-2-one
  2. Bbut-2 enal
  3. C3-methylpent-3-en-2-one
  4. D2-methylbut-2-enal

Correct answer

A. 4-methylpent-3-en-2-one

Step-by-step solution

The given reaction take place in following way Phenol gives white ppt. with bromine water. Acetone when treated with Ba ( OH )₂ undergoes aldol condensation as follows The product D is 4-methylpent-3-en-2-one.

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