What is the thermodynamic product obtained from the addition of 1 mole

1.	What is the thermodynamic product obtained from the addition of 1 mole of HBr to 1,3-butadiene?
Answer» 1-bromo-2-butene 3-bromo-1-butene 4-bromo-1-butene 3-bromo-2-butene SOLUTION :3-Bromo-1-butene is the kinetic product formed upon reaction of HBr with 1,3-butadiene It is formed by ADDITION of bromide anion to the resonance STABILIZED allylic carbocation formed by protonation of the diene. HOWEVER, there is a more STABLE isomeric product which is the thermodynamic product.

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