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Wittig Ylid

D Difference ...

Question

Difference in the molar mass of (D) and (A) is: g/mol

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Solution

Step (1) is wittig reaction. Step (2) proceeds through syn-dihydroxylation. Step (3) utilises pinacol-pinacolone rearrangement via ring expansion.

Here final product (D) differs by $- C H_{2}$ group from (A). Hence difference in molar mass is $14$ g/mol.

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