Seidl, Michael and Kuntz, Christian and Bodensteiner, Michael and Timoshkin, Alexey Y. and Scheer, Manfred (2015) Reaction of Tungsten-Phosphinidene and -Arsinidene Complexes with Carbodiimides and Alkyl Azides: A Straightforward Way to Four-Membered Heterocycles. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 54 (9). pp. 2771-2775. ISSN 1433-7851, 1521-3773
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The reaction of the phosphinidene and arsinidene complexes [Cp*E{W(CO)(5)}(2)] (E=P (1a), As (1b); Cp*=C5Me5) with carbodiimides leads to the new four-membered heterocycles of the type [Cp*C(NR)(2)E{W(CO)(5)}(2)] (E=P: R=iPr (2a), Cy (3a); E=As: R=iPr (2b), Cy (3b)). The reaction of phosphinidene complex 1a with alkyl azides yields the triazaphosphete derivatives [Cp*P{W(CO)(5)}N(R)NN{W(CO)(5)}] (R=Hex, Cy) (4). These unprecedented N3P four-membered triazaphosphete complexes can be regarded as stabilized intermediates of the Staudinger reaction, which have not been previously isolated. All of the isolated products were characterized by NMR, IR spectroscopy, mass spectrometry, and by single-crystal X-ray diffraction analysis.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STAUDINGER REACTION; 1ST 1,2-DIAZA-3,4-DIPHOSPHETIDINES; CRYSTAL-STRUCTURE; TRIPLE BOND; PHOSPHORUS; INSERTION; LIGANDS; ROUTE; RING; CYCLOADDITION; arsenic; cyclization; heterocycles; phosphorus; tungsten |
| 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: | 26 Jul 2019 06:24 |
| Last Modified: | 26 Jul 2019 06:24 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5949 |
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