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A Phosphanyl-Phosphagallene that Functions as a Frustrated Lewis Pair.

ABSTRACT: 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-Pr₂ C₆ H₃ )]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 variant 1?b is stable even at elevated temperatures. 1?b behaves as a frustrated Lewis pair capable of activation of H₂ and forms a 1:1 adduct with CO₂ .

SUBMITTER: Wilson DWN

PROVIDER: S-EPMC7693089 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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A Phosphanyl-Phosphagallene that Functions as a Frustrated Lewis Pair.

Wilson Daniel W N DWN Feld Joey J Goicoechea Jose M JM

Angewandte Chemie (International ed. in English) 20200909 47

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-Pr2 C6 H3 )]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 v ...[more]

PMID: 32615007

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