The major product formed in the following reaction is [2. H₃O⁺]1. KH/THF, Δ · ABC26OR0209
Subject: Organic Chemistry · Chapter: Reagents, Reaction Mechanisms & Named Reactions · Topic: Named Reactions · Exam: CSIR NET DEC 2012 · Marks: 2 · Difficulty: Medium
The major product formed in the following reaction is 
\[ \xrightarrow[2.\ \mathrm{H_3O^{+}}]{1.\ \mathrm{KH/THF},\ \Delta} \]
(a)
(b)
(c)
(d)
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
KH forms the alkoxide of the 1-vinylcyclobutanol whose ring alkene completes a 1,5-diene: anionic oxy-Cope [3,3] shift with four-carbon ring expansion gives, after tautomerisation, the bicyclic cyclooctenone (c).
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