Chemistry - ALCOHOL & ETHER Question with Solution | TestHub
Match the list :
List - I (Reaction / conversion) | List - II (Reagent used) |
|---|---|
(A)
| (P) K2CO3 /EtOH/Δ |
(B)
| (Q) NBS |
(C)
| (R) Al-tertiary butoxide + Quinone |
|
|
(C)
| (R) Al-tertiary butoxide + Quinone |
| (S) MeCH = O/H+ followed by PCC/CH2Cl2
|
Options:
Answer:
Solution:
(A) → (P) : K₂CO₃/EtOH, Δ ke saath intramolecular cyclization (Dieckmann condensation) hoti hai aur fused cyclic β-keto ester banta hai.
(B) → (Q) : NBS allylic oxidation/bromination ke through allylic alcohol system ko corresponding aldehyde product me convert karta hai.
(C) → (R) : Al-tert-butoxide + Quinone Oppenauer oxidation karte hain, jisse primary alcohol selectively oxidize hokar aldehyde ban jata hai.
(D) → (S) : Pehle carbonyl group ko acetal (protection) me convert kiya jata hai, phir PCC/CH₂Cl₂ alcohol ko oxidize karke ketone deta hai.
