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Effect of Increasing Electron Demand

  • Herbert C. Brown
Chapter

Abstract

The nonclassical ion theory is a “soft” theory, exceedingly flexible. In Section 1.8 several examples were presented to show how conflicting data and interpretations could be used and, in the past, have on occasion been so used to support the nonclassical position in spite of the evident contradictions. What is needed is an objective measure of π- and σ-participation. The Gassman-Fentiman approach1 (Section 7.2) offered promise of such an objective measure. Consequently, we undertook to apply it to a large number of representative systems involving possible π- and σ-participation. The results, to be described in this chapter, proved both promising and consistent. However, applied to 2-norbornyl it failed to detect σ-participation.

Keywords

Cationic Center Secondary System Cyclopropane Ring Electron Demand Endo Isomer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1977

Authors and Affiliations

  • Herbert C. Brown
    • 1
  1. 1.Purdue UniversityWest LafayatteUSA

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