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JEE Advanced
Exam
JEE Advanced
Subject
Chemistry
Chapter
Carboxylic Acid Derivatives

JEE Advanced · Chemistry · Carboxylic Acid Derivatives

Which of the following reaction (s) can generate a five membered...

Which of the following reaction (s) can generate a five membered ring as the major product?Which of the following reaction (s) can generate a five membered ring as the major product?Which of the following reaction (s) can generate a five membered ring as the major product?Which of the following reaction (s) can generate a five membered ring as the major product?Which of the following reaction (s) can generate a five membered ring as the major product?Which of the following reaction (s) can generate a five membered ring as the major product?Which of the following reaction (s) can generate a five membered ring as the major product?

Options

  1. AA compound 'X' on treatment with Br / NaOH , provided C_ 3 H_ 9 ~N, which gives positive carbylamine test. Compound X^
  2. BA compound 'X' on treatment with Br / NaOH , provided C_ 3 H_ 9 ~N, which gives positive carbylamine test. Compound X^
  3. CA compound 'X' on treatment with Br / NaOH , provided C_ 3 H_ 9 ~N, which gives positive carbylamine test. Compound X^
  4. DA compound 'X' on treatment with Br / NaOH , provided C_ 3 H_ 9 ~N, which gives positive carbylamine test. Compound X^

Correct answer

D. A compound 'X' on treatment with Br / NaOH , provided C_ 3 H_ 9 ~N, which gives positive carbylamine test. Compound X^

Step-by-step solution

Which of the following reaction (s) can generate a five membered ring as the major product?
I2\mathrm{I}_2 will attack the double bond to form a cyclic halonium ion. It then undergoes on intramolecular reaction. Formation of five membered ring is favoured because (i) attack by a nucleophile on a halonium ion normally takes place at the more substituted site. (ii) Formation of five membered ring is more probable.Which of the following reaction (s) can generate a five membered ring as the major product?
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