Marquardt, Christian and Hegen, Oliver and Kahoun, Tobias and Scheer, Manfred (2017) Oxidation of Substituted Phosphanylboranes with Chalcogens. CHEMISTRY-A EUROPEAN JOURNAL, 23 (18). pp. 4397-4404. ISSN 0947-6539, 1521-3765
Full text not available from this repository. (Request a copy)Abstract
The elemental chalcogens sulfur, selenium, tellurium and bis(trimethylsilyl) peroxide as an oxygen source are applied for the oxidation of the phosphanylboranes Ph2P-BH2 center dot NMe3 (1) and tBuHP-BH2 center dot NMe3 (2). The corresponding monooxidation products Ph2P(X)-BH2 center dot NMe3 (X= O-Te, 3a-d) and tBuHP(X)-BH2 center dot NMe3 (X= O-Te, 4a-d) were obtained in good yields and comprehensively characterized by single crystal X-ray structure analysis, NMR, IR spectroscopy and mass spectrometry. The first oxidation step proceeds very selectively for all chalcogenides. For the tBu derivative, a further oxidation can be realised with O-2, S-8 and Se yielding tBu(HX) P(X)-BH2 center dot NMe3 (X= O, S, Se, 5a-c). The telluride compounds presented herein are the first examples of neutral Te-substituted phosphanylboranes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAIN-GROUP ELEMENTS; PRIMARY PHOSPHINES; CONVENIENT ROUTE; REAGENTS; BORANES; CHAINS; boron; chalcogens; oxidation; phosphanylboranes; phosphorus |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Dec 2018 13:00 |
| Last Modified: | 06 Feb 2019 12:41 |
| URI: | https://pred.uni-regensburg.de/id/eprint/194 |
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