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Two stereoisomers (Shown in fischer proj...

Two stereoisomers (Shown in fischer projection ) from an epoxide, when treated with base.

`r_(A)` and `r_(B)` are rate of epoxide formation for compound (A) and compound(B) with base. Identify the correct option?

A

`r_(A) gt r_(B)`

B

`r_(A) lt r_(B)`

C

`r_(A) = r_(B)`

D

Can't predict

Text Solution

Verified by Experts

The correct Answer is:
A

conjugate base alkoxide of compound (A)

The unfavorable gauche interaction between the two methyI group makes the transition state derived from B more energetic and therefore more difficult to achicve
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