This organic chemistry video tutorial provides a basic introduction into the 1,2 addition reaction and the 1,4 addition of HBr to 1,3-butadiene. The kinetic product is the major product that forms faster at a low temperature. The thermodynamic product is the most stable alkene that forms as the major product at high temperatures.

Full 40 Minute Video:
https://www.youtube.com/watch?v=BlTDF_7IaBA

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Kinetic vs Thermodynamic Product - 1,2 vs 1,4 Addition of HBr to 1,3-  Butadiene
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