MCQ
$4$ -Pentenoic acid when treated with $I_2$ and $NaHCO_3$ gives
  • A
    $4, 5$ -diiodopentanoic acid
  • $5$ -iodomethyl-dihydrofuran- $2$ -one
  • C
    $5$ -iodo-tetrahydropyran- $2$ -one
  • D
    $4$ -pentenolyiodide

Answer

Correct option: B.
$5$ -iodomethyl-dihydrofuran- $2$ -one
b
$(b)$ Iodo lactonization.

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