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Isolable Diaminophosphide Boranes

Metalation of secondary diaminophosphine boranes by alkali metal amides provides a robust and selective access route to a range of metal diaminophosphide boranes M[(R(2)N)(2)P(BH(3))] (M=Li, Na, K; R=alkyl, aryl) with acyclic or heterocyclic molecular backbones, whereas reduction of a chlorodiaminop...

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Autores principales: Blum, Markus, Dunaj, Tobias, Knöller, Julius A., Feil, Christoph M., Nieger, Martin, Gudat, Dietrich
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7756230/
https://www.ncbi.nlm.nih.gov/pubmed/32567741
http://dx.doi.org/10.1002/chem.202002296
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author Blum, Markus
Dunaj, Tobias
Knöller, Julius A.
Feil, Christoph M.
Nieger, Martin
Gudat, Dietrich
author_facet Blum, Markus
Dunaj, Tobias
Knöller, Julius A.
Feil, Christoph M.
Nieger, Martin
Gudat, Dietrich
author_sort Blum, Markus
collection PubMed
description Metalation of secondary diaminophosphine boranes by alkali metal amides provides a robust and selective access route to a range of metal diaminophosphide boranes M[(R(2)N)(2)P(BH(3))] (M=Li, Na, K; R=alkyl, aryl) with acyclic or heterocyclic molecular backbones, whereas reduction of a chlorodiaminophosphine borane gave less satisfactory results. The metalated species were characterized in situ by NMR spectroscopy and in two cases isolated as crystalline solids. Single‐crystal XRD studies revealed the presence of salt‐like structures with strongly interacting ions. Synthetic applications of K[(R(2)N)(2)P(BH(3))] were studied in reactions with a 1,2‐dichlorodisilane and CS(2), which afforded either mono‐ or difunctional phosphine boranes with a rare combination of electronegative amino and electropositive functional disilanyl groups on phosphorus, or a phosphinodithioformate. Spectroscopic studies gave a first hint that removal of the borane fragment may be feasible.
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spelling pubmed-77562302020-12-28 Isolable Diaminophosphide Boranes Blum, Markus Dunaj, Tobias Knöller, Julius A. Feil, Christoph M. Nieger, Martin Gudat, Dietrich Chemistry Full Papers Metalation of secondary diaminophosphine boranes by alkali metal amides provides a robust and selective access route to a range of metal diaminophosphide boranes M[(R(2)N)(2)P(BH(3))] (M=Li, Na, K; R=alkyl, aryl) with acyclic or heterocyclic molecular backbones, whereas reduction of a chlorodiaminophosphine borane gave less satisfactory results. The metalated species were characterized in situ by NMR spectroscopy and in two cases isolated as crystalline solids. Single‐crystal XRD studies revealed the presence of salt‐like structures with strongly interacting ions. Synthetic applications of K[(R(2)N)(2)P(BH(3))] were studied in reactions with a 1,2‐dichlorodisilane and CS(2), which afforded either mono‐ or difunctional phosphine boranes with a rare combination of electronegative amino and electropositive functional disilanyl groups on phosphorus, or a phosphinodithioformate. Spectroscopic studies gave a first hint that removal of the borane fragment may be feasible. John Wiley and Sons Inc. 2020-10-19 2020-11-26 /pmc/articles/PMC7756230/ /pubmed/32567741 http://dx.doi.org/10.1002/chem.202002296 Text en © 2020 The Authors. Published by Wiley-VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Blum, Markus
Dunaj, Tobias
Knöller, Julius A.
Feil, Christoph M.
Nieger, Martin
Gudat, Dietrich
Isolable Diaminophosphide Boranes
title Isolable Diaminophosphide Boranes
title_full Isolable Diaminophosphide Boranes
title_fullStr Isolable Diaminophosphide Boranes
title_full_unstemmed Isolable Diaminophosphide Boranes
title_short Isolable Diaminophosphide Boranes
title_sort isolable diaminophosphide boranes
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7756230/
https://www.ncbi.nlm.nih.gov/pubmed/32567741
http://dx.doi.org/10.1002/chem.202002296
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