The most suitable reagent combination to bring out the following transformation is · ABC26OR0644
Subject: Organic Chemistry · Chapter: Reagents, Reaction Mechanisms & Named Reactions · Topic: Reagents, Reaction Mechanisms & Named Reactions – General · Exam: GATE 2000-2022 · Marks: 2 · Difficulty: Medium
The most suitable reagent combination to bring out the following transformation 
is
is(a)PhCOCl and pyridine
(b)DCC and PhCOOH
(c)$\mathrm{PhBr}, \mathrm{CO}$ and $\mathrm{Pd}\left(\mathrm{PPh}_{3}\right)_{4}$
(d)$\mathrm{EtOOC}-\mathrm{N}=\mathrm{N}-\mathrm{COOEt}, \mathrm{PPh}_{3}$ and PhCOOH
Answer
Answer: D ✓ checked by 4AB · confidence medium
Explanation
Converting the alcohol into the benzoate with inversion of configuration requires the Mitsunobu reaction: DEAD, PPh₃ and PhCOOH (d).
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