Stabilization and Transfer of the Transient [Mes*P4]− Butterfly Anion Using BPh3
Jaap E. Borger
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
Search for more papers by this authorDr. Andreas W. Ehlers
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
Search for more papers by this authorDr. Martin Lutz
Crystal and Structural Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH Utrecht (The Netherlands)
Search for more papers by this authorDr. J. Chris Slootweg
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
Search for more papers by this authorCorresponding Author
Prof. Dr. Koop Lammertsma
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
Department of Chemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006 (South Africa)
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)Search for more papers by this authorJaap E. Borger
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
Search for more papers by this authorDr. Andreas W. Ehlers
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
Search for more papers by this authorDr. Martin Lutz
Crystal and Structural Chemistry, Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH Utrecht (The Netherlands)
Search for more papers by this authorDr. J. Chris Slootweg
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
Search for more papers by this authorCorresponding Author
Prof. Dr. Koop Lammertsma
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)
Department of Chemistry, University of Johannesburg, Auckland Park, Johannesburg, 2006 (South Africa)
Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam (The Netherlands)Search for more papers by this authorGraphical Abstract
Trap and transfer: The bicyclo[1.1.0]tetraphosphabutane anion (see scheme, center), generated from P4 and Mes*Li (Mes*=2,4,6-tBu3C6H2), can be trapped by BPh3 in THF. The anion can be used as an [RP4]− transfer agent, reacting with neutral Lewis acids (B(C6F5)3, BH3, and W(CO)5) to afford unique singly and doubly coordinated butterfly anions and with the trityl cation to form a neutral, nonsymmetrical P4 derivative.
Abstract
The transient bicyclo[1.1.0]tetraphosphabutane anion, generated from white phosphorus (P4) and Mes*Li (Mes*=2,4,6-tBu3C6H2), can be trapped by BPh3 in THF. This Lewis acid stabilized anion can be used as an [RP4]− transfer agent, reacting cleanly with neutral Lewis acids (B(C6F5)3, BH3, and W(CO)5) to afford unique singly and doubly coordinated butterfly anions, and with the trityl cation to form a neutral, nonsymmetrical, all-carbon-substituted P4 derivative. This reaction path enables a simple, stepwise functionalization of white phosphorus.
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