Question

Provide the mechanism for the addition of hydrochloric acid to cyclobutylethene, which occurs through a ring expansion mechanism. Indicate the transition state of the ring opening step using brackets and the ‡ symbol, the dashed lines for the bonds breaking and forming and indicate all partial charges with a δ(+/-). Also, indicate the "H" that is added in Markovnikov fashion to the double bond with lue color. Be sure that the reaction is neat and all bonds have propper angles.

Answer 1

Solution;

Given that:

ve.h CH3 cyclobutyletiene HCL CH3 CH2 2 CH3 CH 3 CH2 CH 3 CH 3 TH CH 3