Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
COMEDK2023Morning ShiftChemistryAlcohols Phenols and EthersActual

Product of the following reaction is

Correct answer

3

Step-by-step solution

The reaction is intramolecular oxymercuration-demercuration on -terpineol. Hg(OAc)₂ activates the double bond forming a mercurinium ion intermediate. The -OH group in the molecule acts as an internal nucleophile, attacking the more substituted (tertiary) carbon of the mercurinium ion (Markovnikov selectivity), forming a stable 6-membered cyclic ether ring bridging the cyclohexane ring. NaBH₄ then reduces the C - Hg bond, replacing Hg with H. The product is a bicyclic ether (1,8-cineole/eucalyptol) with oxygen bridg

Practice Alcohols Phenols and Ethers on Quantrex Academy →

More from Alcohols Phenols and Ethers

Consider the series of reactions given and identify the final product [Z]. 2026An unsaturated organic compound (C₃ H₆ ), undergoes the following series of reactions: C ₃ H ₆ dil H₂SO₄ [ B ] ( Major Product ) + HCl / ZnCl₂ [ C ] Na_ (s) / dry ether [ D ] Ident 2026Two statements [A] and [B] are given below. Choose the correct option. A) Protonated R - CH₂- OH can serve as Electrophiles while neutral R - OH acts as a Nucleophile. B) The bond 2026Choose the incorrect statement. 2026A compound [X] undergoes reactions as given. Identify compounds [C] and [D] formed in these reactions. 2026Choose the correct reason: o-hydroxybenzaldehyde is a liquid at room temperature while p -hydroxy-benzaldehyde is a high melting solid, because 2026Match reactions in Column I with the corresponding products formed as given in Column II. Column I Column II A. C ₆ H ₅ N ₂^+ Cl ^- + H ₂ O warm P. p–Bromophenol B. C ₆ H ₅ OH + Br 2026An aliphatic compound [X], Molecular formula ( C ₄ H ₁₀ O ) can be prepared from Acetone and R– Mg–X. [X] with 20% Phosphoric acid gives an unsaturated compound C ₄ H ₈ [Y]. Compou 2026 Full Alcohols Phenols and Ethers list All COMEDK PYQs