Consider the following reactions, which of these reaction(s) will not produce Saytzeff product?
Which of these reaction(s) will not produce Saytzeff product?
(A)(b) and (d)
(B)(c) only✓ Correct
(C)(a), (c) and (d)
(D)(d) only
Answer: (B)
Solution
The Saytzeff product is the more substituted, more stable alkene, which is the normal outcome of elimination; only a bulky base steers the reaction towards the less substituted Hofmann alkene. Scanning the given reactions, a bulky base is used in reaction (c) alone, so that is the only one that fails to give the Saytzeff product.
JEE Main · 2020 · 07 Jan 2020 · Shift 1 · Single correct option