The major product formed in the following reaction is · ABC26OR0902
Subject: Organic Chemistry · Chapter: Reagents, Reaction Mechanisms & Named Reactions · Topic: Reagents, Reaction Mechanisms & Named Reactions – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Medium
The major product formed in the following reaction is 
(a)
(b)
(c)
(d)
Answer
Answer: B ✓ checked by 4AB · confidence high
The source book printed no answer; this one was worked out and checked — see the explanation.
Explanation
Aqueous TFA at 0 °C hydrolyses only the most labile group, the acyclic dimethyl acetal, to the aldehyde. The dithiane and the 1,3-dioxolane survive (b).
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