JEE Main Chemistry question

In which of the following is electron delocalisation possible?

(A)CH=CH–CH–OCorrect
(B)CHCHCH–O
(C)CH=CH–CH–CH=CH (a non-conjugated, "skipped" diene)
(D)None of the above

Answer: (A)

Solution

In the allylic alkoxide of (A), the negative charge on oxygen is conjugated with (and delocalises into) the adjacent C=C -system, giving genuine resonance stabilisation. The simple alkoxide of (B) has no

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-142636