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Problems and exercisesConjugated Electrophilic Addition

1. Kinetic and thermodynamic control

Predict the result of the following processes:

1,1′-Bi(cyclohexenyl) with 1 equivalent of HBr at 90 °C and at −15 °C

2. Where does the proton go?

In the addition of HCl to 1,3-pentadiene, why does the proton bond to C1 and not to C2 or C5?

3. Products

Give the products of the addition of 1 equivalent of Br2 to 1,3-butadiene at −80 °C and at 40 °C.

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