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Synthesis and Ambiphilic Reactivity of Metalated Diorgano‐Phosphonite Boranes
Author(s) -
Hettich Thomas D.,
Rudolf Richard,
Feil Christoph M.,
Birchall Nicholas,
Nieger Martin,
Gudat Dietrich
Publication year - 2021
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202005437
Subject(s) - boranes , chemistry , phosphine , organic chemistry , silylation , reactivity (psychology) , medicinal chemistry , stereochemistry , boron , medicine , alternative medicine , pathology , catalysis
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.