Jun, 2009
Comparative reactivity of triorganosilanes, HSi(OEt)(3) and HSiEt3, with IrCl(CO)(PPh3)(2). Formation of IrCl(H)(2)(CO)(PPh3)(2) or Ir(H)(2)(SiEt3)(CO)(PPh3)(2) depending on the substituents at Si
INORGANICA CHIMICA ACTA
- ,
- ,
- Volume
- 362
- Number
- 8
- First page
- 2951
- Last page
- 2956
- Language
- English
- Publishing type
- DOI
- 10.1016/j.ica.2008.12.033
- Publisher
- ELSEVIER SCIENCE SA
Reaction of HSi(OEt)(3) with IrCl(CO)(PPh3)(2) (5:1 molar ratio) at room temperature for 1 h gives IrCl(H){Si(OEt)(3)}(CO)(PPh3)(2) (1), which is observed by the H-1 and P-31{H-1} NMR spectra of the reaction mixture. The same reaction, but in 20:1 molar ratio at 50 degrees C for 24 h produces IrCl(H)(2)(CO)(PPh3)(2) (2) rather than the expected product Ir(H)(2){Si(OEt)(3)}(CO)(PPh3)(2) (3) that was previously reported to be formed by this reaction. Accompanying formation of Si(OEt)(4), (EtO)(3)SiOSi(OEt)(3), and (EtO)(2)HSiOSi(OEt)(3) is observed. On the other hand, trialkylhydrosilane HSiEt3 reacts with IrCl(CO)(PPh3)(2) (10:1 molar ratio) at 80 degrees C for 84 h to give Ir(H)(2)(SiEt3)(CO)(PPh3)(2) (4) in a high yield, accompanying with a release of ClSiEt3. (C) 2009 Elsevier B.V. All rights reserved.
- Link information
- ID information
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- DOI : 10.1016/j.ica.2008.12.033
- ISSN : 0020-1693
- Web of Science ID : WOS:000265509200066