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The ring expansion of a dimethyl-substituted vinylcyclobutene derivative by metal complexes that can undergo an inner-sphere electron transfer

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
601
Issue
1
Identifiers
DOI: 10.1016/s0022-328x(00)00054-1
Keywords
  • Rearrangement Reaction
  • Inner-Sphere Electron Transfer
  • Ring Expansion

Abstract

Abstract The ring expansion of a dimethyl-substituted vinylcyclobutene derivative to the corresponding dimethyl-substituted cyclohexadiene or aromatic compound was studied. It was found that metal complexes of Ni(I), Ti(III), Sm(II), and Fe(II), which can undergo an inner-sphere electron-transfer reaction, allow the rearrangement to occur at room temperature. Other oxidation states of these metals and complexes that can only undergo an outer-sphere electron-transfer process do not promote this ring expansion reaction.

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