1,3-butadiene reacting with Cl2 in CH2C12 results in 3,4-dichloro-1-butene as major product at -80°C, while if these reagents are mixed at 40°C, the major product will be (E)- 1,4-dichloro-2-butene. a. Label the 1,2-addition product and the 1,4-addition product. b. Label the kinetic product and the thermodynamic product. c. Explain why one product is favoured at higher temperatures and the other is favoured at lower temperatures.

1,3-butadiene reacting with Cl2 in CH2C12 results in 3,4-dichloro-1-butene as major product at -80°C, while if these reagents are mixed at 40°C, the major product will be (E)- 1,4-dichloro-2-butene. a. Label the 1,2-addition product and the 1,4-addition product. b. Label the kinetic product and the thermodynamic product. c. Explain why one product is favoured at higher temperatures and the other is favoured at lower temperatures.

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter8: Haloalkanes, Halogenation, And Radical Reactions

Section: Chapter Questions

Problem 8.28P

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