Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 12, Pages 6435-6440Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202015680
Keywords
bond activation; nickel; phosphaalkyne oligomers; phosphatetrahedranes; phosphorus
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Funding
- Fonds der Chemischen Industrie (Kekule Fellowship)
- European Research Council [CoG 772299]
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The reactivity of di-tert-butyldiphosphatetrahedrane was studied, showing selective activation by N-heterocyclic carbene nickel(I) and nickel(0) complexes to form novel complexes. Furthermore, release of the tetrahedral framework was achieved by addition of CO gas.
The first mixed phosphatetrahedranes were reported only recently and their reactivity is virtually unexplored. Herein, we present a reactivity study on di-tert-butyldiphosphatetrahedrane (1), which is the dimer of tert-butylphosphaalkyne. The (tBuCP)(2) tetrahedron is activated selectively by N-heterocyclic carbene (NHC) nickel(I) and nickel(0) complexes, resulting in novel complexes featuring diverse (tBuCP)(n)-frameworks (n=2, 4). Release of the (tBuCP)(4) framework from one of the complexes was achieved by addition of CO gas. Furthermore, 1 can be used as a source for P-2 units by elimination of di-tert-butylacetylene in the coordination sphere of nickel.
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