Which of the following ketone will NOT give enamine on treatment with secondary amines? [where t-Bu is ]
← JEE Main 2022 · 25 Jun · Shift 2
ChemistrySingle correct+4 / -1Question 79 of 90
JEE Main 2022 · 25 Jun · Shift 2, Chemistry question 79
Answer and worked solution
Official answer: C
Enamine formation needs an α-hydrogen to lose after the iminium ion forms. Di-tert-butyl ketone has none (and is very hindered), so it gives no enamine.
(C)