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Abstract
AbstractThe character of bis(2,4,6-tri-tert-butylphenyl)diphosphene is described experimentally and theoretically. The diphosphene is stabilized by steric protection and the structure can be characterized by spectroscopic as well as crystallographic analyses. Theoretical calculation on the diphosphene strongly suggests that the P=P bond is an isolated double bond and that the P–C bonds are single covalent bond. The reactivity has been investigated including photolysis, oxidation, sulfurization, selenation, transition-metal complex formation, and carbene addition. Plausible mechanistic scheme for the reaction of the diphosphene with 3,4,5,6-tetrachlorocyclohexa-3,5-diene-1,2-dione (or tetrachloro-o-benzoquinone) to a pentavalent spiro product is discussed based on the product analysis.
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Affiliation(s)
- Masaaki Yoshifuji
- 1Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza-Aoba, Aoba, Sendai, Miyagi, 980-0845, Japan
- 2Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama, AL 35487-0336, USA
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Affiliation(s)
- Fayez H Osman
- Department of Pesticide Chemistry, National Research Centre, Dokki, Cairo 12622, Egypt.
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