Issue 100, 2016, Issue in Progress
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RSC Advances

Preparation of diazoalkane complexes of iron(ii)†

Gabriele Albertin,*a   Stefano Antoniutti,a   Marco Bortoluzzi,a   Alessandra Botter,a   Jesús Castrob  and  Francesca Sibillaa  

* Corresponding authors

a Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Via Torino 155, 30172 Mestre Venezia, Italy
E-mail: albertin@unive.it

b Departamento de Química Inorgánica, Universidade de Vigo, Facultade de Química, Edificio de Ciencias Experimentais, 36310 Vigo (Galicia), Spain

Abstract

Diazoalkane complexes [Fe(η5-C5H5)(N2CAr1Ar2)(P–P)]BPh4 (1, 2) [P–P = Ph2PCH2CH2PPh2 (dppe) (1), Ph2PCH2CH2CH2PPh2 (dppp) (2); Ar1 = Ar2 = Ph (a); Ar1 = Ph, Ar2 = p-tolyl (b); Ar1Ar2 = C12H8 (c)] were prepared by allowing chloro compounds FeCl(η5-C5H5)(P–P) to react with diazoalkane in the presence of NaBPh4. Phosphine complex [Fe(η5-C5H5)(dppe)(κ1-PPh2CH2CH2PPh2)]BPh4 (3) was also prepared. Treatment of diazoalkane complexes 1, 2 with acrylonitrile afforded 3H-pyrazole derivatives Image ID:c6ra22051g-u1.gif (4, 5), as well as a small amount of nitrile complex [Fe(η5-C5H5)(κ1-NCC(H)[double bond, length as m-dash]CH2)(P–P)]BPh4 (6). The complexes were characterised spectroscopically (IR, NMR) and by X-ray crystal structure determination of [Fe(η5-C5H5){N2C(C12H8)}(dppe)]BPh4 (1c).

Graphical abstract: Preparation of diazoalkane complexes of iron(ii)

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Article information

DOI
https://doi.org/10.1039/C6RA22051G
Article type
Paper
Submitted
02 Sep 2016
Accepted
06 Oct 2016
First published
12 Oct 2016

RSC Adv., 2016,6, 97650-97658

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Preparation of diazoalkane complexes of iron(II)

G. Albertin, S. Antoniutti, M. Bortoluzzi, A. Botter, J. Castro and F. Sibilla, RSC Adv., 2016, 6, 97650 DOI: 10.1039/C6RA22051G

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