5. Based on your knowledge of thermodynamics and kinetics, clearly provide the predicted outcome of the reaction shown below at low temp (-78 °C gives 2 major products) and high temp (40 °C - gives 1 major product). Low Temp- Product Low Temp- Product HBr -78 °C HBr 40 °C High Temp- Product
5. Based on your knowledge of thermodynamics and kinetics, clearly provide the predicted outcome of the reaction shown below at low temp (-78 °C gives 2 major products) and high temp (40 °C - gives 1 major product). Low Temp- Product Low Temp- Product HBr -78 °C HBr 40 °C High Temp- Product
Chapter30: Orbitals And Organic Chemistry: Pericyclic Reactions
Section30.SE: Something Extra
Problem 39AP
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Transcribed Image Text:5. Based on your knowledge of thermodynamics and kinetics, clearly provide the predicted outcome of the
reaction shown below at low temp (-78 °C gives 2 major products) and high temp (40 °C - gives 1 major
product).
Low Temp- Product
Low Temp- Product
HBr
-78 °C
HBr
40 °C
High Temp- Product
Expert Solution
Step 1
This problem is based on general organic chemistry reaction mechanism and is a part of hydrocarbon . At low temperature kinetically controlled product (1,2 addition) and at high temperature thermodynamically controlled product(1,4 addition) is obtained. The solution is given below.
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