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Seidl M, Kuntz C, Bodensteiner M, et al. Reaction of tungsten-phosphinidene and -arsinidene complexes with carbodiimides and alkyl azides: a straightforward way to four-membered heterocycles. Angew Chem Int Ed Engl. 2015;54(9):2771-5doi: 10.1002/anie.201410191.
Seidl, M., Kuntz, C., Bodensteiner, M., Timoshkin, A. Y., & Scheer, M. (2015). Reaction of tungsten-phosphinidene and -arsinidene complexes with carbodiimides and alkyl azides: a straightforward way to four-membered heterocycles. Angewandte Chemie (International ed. in English), 54(9), 2771-5. https://doi.org/10.1002/anie.201410191
Seidl, Michael, et al. "Reaction of tungsten-phosphinidene and -arsinidene complexes with carbodiimides and alkyl azides: a straightforward way to four-membered heterocycles." Angewandte Chemie (International ed. in English) vol. 54,9 (2015): 2771-5. doi: https://doi.org/10.1002/anie.201410191
Seidl M, Kuntz C, Bodensteiner M, Timoshkin AY, Scheer M. Reaction of tungsten-phosphinidene and -arsinidene complexes with carbodiimides and alkyl azides: a straightforward way to four-membered heterocycles. Angew Chem Int Ed Engl. 2015 Feb 23;54(9):2771-5. doi: 10.1002/anie.201410191. Epub 2015 Jan 07. PMID: 25565087.
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Angew Chem Int Ed Engl. 2015 Feb 23;54(9):2771-5. doi: 10.1002/anie.201410191. Epub 2015 Jan 07.

Reaction of tungsten-phosphinidene and -arsinidene complexes with carbodiimides and alkyl azides: a straightforward way to four-membered heterocycles.

Angewandte Chemie (International ed. in English)

Michael Seidl, Christian Kuntz, Michael Bodensteiner, Alexey Y Timoshkin, Manfred Scheer

Affiliations

  1. Institut für Anorganische Chemie der Universität Regensburg, 93040 Regensburg (Germany).

PMID: 25565087 DOI: 10.1002/anie.201410191

Abstract

The reaction of the phosphinidene and arsinidene complexes [Cp*E{W(CO)5 }2 ] (E=P (1 a), As (1 b); Cp*=C5 Me5 ) 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 (2 a), Cy (3 a); E=As: R=iPr (2 b), Cy (3 b)). The reaction of phosphinidene complex 1 a with alkyl azides yields the triazaphosphete derivatives [Cp*P{W(CO)5 }N(R)NN{W(CO)5 }] (R=Hex, Cy) (4). These unprecedented N3 P 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.

© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: arsenic; cyclization; heterocycles; phosphorus; tungsten

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