The following is Fischer projection
Ph Ph
l l
Br ---- H Br ----- H OH-
l , l ---->
H ---- Ph H ----- Me
l l
Ph Ph
(A) (B)
Which one is more reactive in elimination?
My guess is that B is more reactive as methyl group is electron-donating group which can stabilize the carbocation. Am I correct?
But someone say A is more reactive, as conjugated double bond is formed when Ph is attached, energy state become lower.
Which one is correct?