Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 59, Issue 47, Pages 20914-20918Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202008207
Keywords
decarbonylation; gallium; frustrated Lewis pairs; phosphaketenes; phosphorus
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Funding
- EPSRC
- University of Oxford
- EPSRC [EP/M027732/1] Funding Source: UKRI
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Phosphagallenes (1 a/1 b) featuring double bonds between phosphorus and gallium were synthesized by reaction of (phosphanyl)phosphaketenes with the gallium carbenoid Ga(Nacnac) (Nacnac=HC[C(Me)N(2,6-i-Pr2C6H3)](2)). The stability of these species is dependent on the saturation of the phosphanyl moiety.1 a, which bears an unsaturated phosphanyl ring, rearranges in solution to yield a spirocyclic compound (2) which contains a P=P bond. The saturated variant1 bis stable even at elevated temperatures.1 bbehaves as a frustrated Lewis pair capable of activation of H(2)and forms a 1:1 adduct with CO2.
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