Abstract
In this paper, we highlight the synthesis of a variety of primary phosphine-boranes (RPH2⋅BH3) from the corresponding dichlorophosphines, simply by using Li[BH4] as reductant and provider of the BH3 protecting group. The method offers facile access not only to alkyl- and arylphosphine-boranes, but also to aminophosphine-boranes (R2NPH2⋅BH3) that are convenient building blocks but without the protecting BH3 moiety thermally labile and notoriously difficult to handle. The borane-protected primary phosphines can be doubly deprotonated using n-butyllithium to provide soluble phosphanediides Li2[RP⋅BH3] of which the phenyl-derivative Li2[PhP⋅BH3] was structurally characterized in the solid state.
Original language | English |
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Pages (from-to) | 15944-15952 |
Number of pages | 9 |
Journal | Chemistry - A European Journal |
Volume | 26 |
Issue number | 68 |
Early online date | 30 Jun 2020 |
DOIs | |
Publication status | Published - 4 Dec 2020 |
Keywords
- crystal structures
- phosphanediide
- phosphine borane
- primary phosphine
- synthesis
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Dive into the research topics of 'Easy Access to Phosphine-Borane Building Blocks'. Together they form a unique fingerprint.Datasets
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CCDC 2001504: Experimental Crystal Structure Determination
Jong, G. B. (Contributor), Ortega, N. (Contributor), Lutz, M. (Contributor), Lammertsma, K. (Contributor) & Slootweg, J. C. (Contributor), Unknown Publisher, 1 Jan 2020
DOI: 10.5517/ccdc.csd.cc255qnr, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc255qnr&sid=DataCite
Dataset
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CCDC 2001506: Experimental Crystal Structure Determination
Jong, G. B. (Contributor), Ortega, N. (Contributor), Lutz, M. (Contributor), Lammertsma, K. (Contributor) & Slootweg, J. C. (Contributor), Unknown Publisher, 1 Jan 2020
DOI: 10.5517/ccdc.csd.cc255qqt, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc255qqt&sid=DataCite
Dataset
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CCDC 2001505: Experimental Crystal Structure Determination
Jong, G. B. (Contributor), Ortega, N. (Contributor), Lutz, M. (Contributor), Lammertsma, K. (Contributor) & Slootweg, J. C. (Contributor), Unknown Publisher, 1 Jan 2020
DOI: 10.5517/ccdc.csd.cc255qps, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/ccdc.csd.cc255qps&sid=DataCite
Dataset