Transition states

[Leonardo_VegaHidalgo_2E]

How many transition states are there in an electrophilic reaction?

[Jana_Lang_2B]

If you're talking about an electrophillic addition reaction mechanism, there are two transition states.

[Chem_Mod]

There are many types of electrophilic reactions in chemistry. For the once covered in lecture, there are 2 steps.

[Desiree Martin 2A]

In the electrophilic addition reaction there are two transition states since there are two steps. Each step correlates with a differing transition state. In the first transition state, the double bond breaks between two carbons, and the electrophile (ex.H-Br) attaches through a tentative bond with the carbon on one side of the broken double bond. This creates a carbocation on the other side of the bond, where in transition state 2, the Br- breaks and forms a bond with the carbocation. This leads into the final product where H and Br are now attached to the original structure, and there is no double bond present any longer within the molecule.