4. For the following reactions, develop a transition-state structure using molecular models which would account for the observed stereoselectivity. Also, describe the type of pericyclic reactions using the proper terminology. (each Br Ayon A Br heat 0°℃ heat heat d) MeO₂C OCH3 OCH3 heat •do-goo HO НО heat MeO₂C A CO₂Me CO₂Me product?

4. For the following reactions, develop a transition-state structure using molecular models which would account for the observed stereoselectivity. Also, describe the type of pericyclic reactions using the proper terminology. (each Br Ayon A Br heat 0°℃ heat heat d) MeO₂C OCH3 OCH3 heat •do-goo HO НО heat MeO₂C A CO₂Me CO₂Me product?

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter30: Orbitals And Organic Chemistry: Pericyclic Reactions

Section30.SE: Something Extra

Problem 19AP

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