The <i>bis</i>(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments
Diaryl substituted phosphorus (III) compounds are commonly used motifs in synthesis. Although the basic synthetic routes to these molecules starting from PCl<sub>3</sub> are well reported, sterically hindered aryl substituents can be difficult to introduce, especially if the P atom is in...
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2021
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oai:doaj.org-article:28135832c06b4a4b88615bc99d5517592021-11-25T17:58:58ZThe <i>bis</i>(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments10.3390/inorganics91100822304-6740https://doaj.org/article/28135832c06b4a4b88615bc99d5517592021-11-01T00:00:00Zhttps://www.mdpi.com/2304-6740/9/11/82https://doaj.org/toc/2304-6740Diaryl substituted phosphorus (III) compounds are commonly used motifs in synthesis. Although the basic synthetic routes to these molecules starting from PCl<sub>3</sub> are well reported, sterically hindered aryl substituents can be difficult to introduce, especially if the P atom is in <i>ortho</i> position to another group. This work explores the chemistry of the <i>bis</i>(biphenyl)phosphorus(III) fragment. As third substituents, H, M, Cl, NR<sub>2</sub>, two group 14 element substituents and also Li were introduced in high-yielding processes offering a wide chemical variety of the <i>bis</i>(biphenyl) phosphine motif. In addition, also a tetravalent phosphine borane adduct was isolated. All structures were thoroughly investigated by heteronuclear NMR spectroscopic analysis. Furthermore, the reaction conditions are discussed in connection with the structures and four crystal structures of the aminophosphine, phosphine, phosphine borane and phosphide are provided. The latter crystallized as a dimer with a unique planar P<sub>2</sub>Li<sub>2</sub> ring, which is stabilized by the non-covalent C⋯Li interaction arising from the biphenyl motif and represents a rare example of a donor-free planar P<sub>2</sub>Li<sub>2</sub> ring.Jonas HoffmannDaniel DuvinageEnno LorkAnne StaubitzMDPI AGarticleorganophosphorus chemistryphosphidephosphineligandphosphine boraneaminophosphineInorganic chemistryQD146-197ENInorganics, Vol 9, Iss 82, p 82 (2021) |
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DOAJ |
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DOAJ |
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EN |
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organophosphorus chemistry phosphide phosphine ligand phosphine borane aminophosphine Inorganic chemistry QD146-197 |
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organophosphorus chemistry phosphide phosphine ligand phosphine borane aminophosphine Inorganic chemistry QD146-197 Jonas Hoffmann Daniel Duvinage Enno Lork Anne Staubitz The <i>bis</i>(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments |
| description |
Diaryl substituted phosphorus (III) compounds are commonly used motifs in synthesis. Although the basic synthetic routes to these molecules starting from PCl<sub>3</sub> are well reported, sterically hindered aryl substituents can be difficult to introduce, especially if the P atom is in <i>ortho</i> position to another group. This work explores the chemistry of the <i>bis</i>(biphenyl)phosphorus(III) fragment. As third substituents, H, M, Cl, NR<sub>2</sub>, two group 14 element substituents and also Li were introduced in high-yielding processes offering a wide chemical variety of the <i>bis</i>(biphenyl) phosphine motif. In addition, also a tetravalent phosphine borane adduct was isolated. All structures were thoroughly investigated by heteronuclear NMR spectroscopic analysis. Furthermore, the reaction conditions are discussed in connection with the structures and four crystal structures of the aminophosphine, phosphine, phosphine borane and phosphide are provided. The latter crystallized as a dimer with a unique planar P<sub>2</sub>Li<sub>2</sub> ring, which is stabilized by the non-covalent C⋯Li interaction arising from the biphenyl motif and represents a rare example of a donor-free planar P<sub>2</sub>Li<sub>2</sub> ring. |
| format |
article |
| author |
Jonas Hoffmann Daniel Duvinage Enno Lork Anne Staubitz |
| author_facet |
Jonas Hoffmann Daniel Duvinage Enno Lork Anne Staubitz |
| author_sort |
Jonas Hoffmann |
| title |
The <i>bis</i>(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments |
| title_short |
The <i>bis</i>(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments |
| title_full |
The <i>bis</i>(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments |
| title_fullStr |
The <i>bis</i>(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments |
| title_full_unstemmed |
The <i>bis</i>(Biphenyl)phosphorus Fragment in Trivalent and Tetravalent P-Environments |
| title_sort |
<i>bis</i>(biphenyl)phosphorus fragment in trivalent and tetravalent p-environments |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/28135832c06b4a4b88615bc99d551759 |
| work_keys_str_mv |
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