2. Write a mechanism for the formation of pentasubstituted benzene 8 from cyclopentadienone 6 and alkyne 7. (Hints: An alkyne can act as a dienophile; start with a Diels-Alder reaction; number the atoms of your starting materials and the product to see where bonds are broken and formed and whether anything is gained or lost overall.) Ph Ph CH3 EtO -- کیسے ہو H 8 -CH3 OEt Heat 6

2. Write a mechanism for the formation of pentasubstituted benzene 8 from cyclopentadienone 6 and alkyne 7. (Hints: An alkyne can act as a dienophile; start with a Diels-Alder reaction; number the atoms of your starting materials and the product to see where bonds are broken and formed and whether anything is gained or lost overall.) Ph Ph CH3 EtO -- کیسے ہو H 8 -CH3 OEt Heat 6

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 8.18P

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