JEE Advanced · ChemistryHard
Consider the reaction of with at followed by treatment with . Which of the following statements correctly describes the major product?
- A.The product is .
- B.The product is (kinetic product).
- C.The product is (thermodynamic product).
- D.The reaction yields a mixture of and in equal amounts.
Show correct answer & step-by-step solution
Correct answer: B — The product is (kinetic product).
Solution
- is a bulky, strong base that abstracts the most accessible proton at low temperature.
- Abstraction of the proton from the less substituted position forms the kinetic enolate.
- Alkylation of the kinetic enolate with yields .
- Hence the answer is (B).
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