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Woodward and Hoffmann. Hoffmann and Woodward. A Close Collaboration Had Yet to Begin
1Department of Chemistry, University of Richmond, Richmond, Virginia, 23173, USA.
Abstract:
In 1965, R. B. Woodward and Roald Hoffmann published five communications in the Journal of the American Chemical Society in which they outlined the mechanisms of electrocyclizations, cycloadditions, and sigmatropic reactions - today known as the Woodward-Hoffmann rules. Over the next several years, the organic chemistry community rushed to test the validity of the W-H rules and expand the range of reactions covered by them. Meanwhile, Woodward and Hoffmann were besieged with invitations to lecture and write expositions on these concepts. In this publication, I present an analysis of Woodward and Hoffmann's next publications in 1966 and 1967 on the W-H rules. Two of these publications were based on lectures Woodward or Hoffmann presented in late 1965 and 1966. I also discuss their own continuing research on the topic in this time period (all by Hoffmann; none by Woodward). I conclude that the assumed intimate collaboration of Woodward and Hoffmann had actually not yet begun.
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