Major product formed in the following reaction sequence is: · ABC26OR0740
Subject: Organic Chemistry · Chapter: Organic Spectroscopy · Topic: Organic Spectroscopy – General · Exam: GATE 2000-2022 · Marks: 2 · Difficulty: Medium
Major product formed in the following reaction sequence is: 
(a)
(b)
(c)
(d)
Answer
Answer: D ✓ checked by 4AB · confidence medium
The source book printed no answer; this one was worked out and checked — see the explanation.
Explanation
Birch reduction gives the 1-methoxy-1,4-cyclohexadiene; one equivalent of O₃ cleaves the electron-rich enol-ether C=C, giving the methyl ester and the ethyl ketone with the remaining ring alkene retaining its cis geometry (d).
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