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Synthesis and Ambiphilic Reactivity of Metalated Diorgano-Phosphonite Boranes.

ABSTRACT: Unprecedented metalated phosphonite boranes were prepared from PH-substituted precursors and silyl amides. Although potassium derivatives were thermally stable and could even be isolated and structurally characterised, lithiated analogues proved to be unstable towards self-condensation under cleavage of LiOR at ambient temperature. Reaction studies revealed that the metalated phosphonite boranes exhibit ambiphilic character. Their synthetic potential as nucleophilic building blocks was demonstrated in the synthesis of the first stannylated phosphonite representing a new structural motif in phosphine chemistry.

SUBMITTER: Hettich TD

PROVIDER: S-EPMC8048877 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Synthesis and Ambiphilic Reactivity of Metalated Diorgano-Phosphonite Boranes.

Hettich Thomas D TD Rudolf Richard R Feil Christoph M CM Birchall Nicholas N Nieger Martin M Gudat Dietrich D

Chemistry (Weinheim an der Bergstrasse, Germany) 20210226 17

Unprecedented metalated phosphonite boranes were prepared from PH-substituted precursors and silyl amides. Although potassium derivatives were thermally stable and could even be isolated and structurally characterised, lithiated analogues proved to be unstable towards self-condensation under cleavage of LiOR at ambient temperature. Reaction studies revealed that the metalated phosphonite boranes exhibit ambiphilic character. Their synthetic potential as nucleophilic building blocks was demonstra ...[more]

PMID: 33497004

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