JEE Main 2022 · 25 Jul · Shift 2 · Chemistry Q74

ChemistrySingle correct+4 / -1Question 74 of 90

What is the major product of the following reaction ?

2,2,4-Trimethylpent-3-enal

3-Hydroxy-2,2,4-trimethylpentanal

2,2,4-Trimethyl-3-oxopentanal

2-Isopropyl-3-methylbut-2-enal

Answer and worked solution

Official answer: B

Aldol. Isobutyraldehyde has one α-H; the aldol adduct cannot dehydrate (no α-H left on that carbon), so it is 3-hydroxy-2,2,4-trimethylpentanal.

(B)

Topics:Aldol and related condensations

JEE Main 2022 · 25 Jul · Shift 2, Chemistry question 74