Reaction of Tungsten-Phosphinidene and –Arsenidene complexes with Carbodiimides and Alkyl Azides: a straightforward way to four-membered heterocycles

M. Seidl, C. Kuntz, M. Bodensteiner, A.Y. Timoshkin, M. Scheer

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18 Citations (Scopus)


© 2015 Wiley-VCH Verlag GmbH & Co. KGaA.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)2E{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.
Original languageEnglish
Pages (from-to)2771-2775
Issue number9
Publication statusPublished - 2015


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