Reactions of Dienes

At a low temp: 1,3-butadiene + 1 mol HBr->
- H₃C-CH(Br)-CH=CH₂
- kinetic product
- less stable
At a high temp: 1,3-butadiene + 1 mol HBr->
- H₃C-CH=CH-CH₂
- thermodynamic product
- more stable
alkene + NBS, heat/light->

substitution at the allylic carbon (C next to the double bond)
halogenated alkene + Li, pentane, alkyl halide->

alkene-R
Diels Alder Reaction

1,3-butadiene + ethene -> cyclohexene
1,3-butadiene --> cyclohexene (diels alder reaction)

ethene
1,3-butadiene --> 1,4-cyclohexadiene (diels alder reaction)

ethyne

Author

enger91

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Card Set

Reactions of Dienes

Description

University of MN twin cities, CHEM 2302

Updated

2011-05-12T00:21:09Z

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