1.2

When examining the mechanism of addition to aromatic systems (figure below), it was noticed that the quotient ln(kx/kh)= -8.5 sigma for a series of reactions of compounds substituted respectively: -OMe, -NMe2, -H, -Br, -Cl, -F, - NO2.

A) draw the structure of the potential transition state

B) how will the electron density in the transition state change in relation to the substrate?

C) give the acronym and full name of the postulated mechanism

SNaCO2CH3[?] CO2CH2