37. Pseudo-pericyclic reactions are reactions that appear at first glance to be pericyclic, in that arrow pushing shows a cyclic array of electrons at the transition state. Several of the other facets of pericyclic reactions are also commonly evident, such as low barriers if the geometries are favorable. However, these reactions are never forbidden based upon a symmetry argument. Examples of such reactions are given below. Write the proper arrow pushing for these reactions, and identity the one facet of these reactions that does not properly conform to standard pericyclic reactions, thereby making them "pseudo-pericyclic". (Hint: In your arrow pushing, it is important to identify the correct source of each arrow.) OH [3,5] her [3.3] ING OH

37. Pseudo-pericyclic reactions are reactions that appear at first glance to be pericyclic, in that arrow pushing shows a cyclic array of electrons at the transition state. Several of the other facets of pericyclic reactions are also commonly evident, such as low barriers if the geometries are favorable. However, these reactions are never forbidden based upon a symmetry argument. Examples of such reactions are given below. Write the proper arrow pushing for these reactions, and identity the one facet of these reactions that does not properly conform to standard pericyclic reactions, thereby making them "pseudo-pericyclic". (Hint: In your arrow pushing, it is important to identify the correct source of each arrow.) OH [3,5] her [3.3] ING OH

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

Chapter24: Catalytic Carbon-carbon Bond Formation

Section: Chapter Questions

Problem 24.36P

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