Synthesis and Complexation of the Metalloligand {(η5-C5H5)[η5-C5Me3-1,2-(PPh2)2]TiCl2} (TiPHOS): The First Example of a 1,2-Bis(diphenylphosphanyl)titanocene Derivative
✍ Scribed by Pierre Le Gendre; Emeline Maubrou; Olivier Blacque; Gilles Boni; Claude Moïse
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 254 KB
- Volume
- 2001
- Category
- Article
- ISSN
- 1434-1948
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📜 SIMILAR VOLUMES
The reactions of the bis(trimethylsilyl)acetylene permethylmetallocene complexes Cp 2 M(g 2 -Me 3 SiC 2 SiMe 3 ) (M = Ti (1), M = Zr (2)) with H 2 O and CO 2 were studied and compared to those of the corresponding metallocene complexes Cp 2 M(L)(g 2 -Me 3 SiC 2 SiMe 3 ) (M = Ti (3), L = ± ; M = Zr,
The five-step synthesis of the first transition metal complex CH 2 PPh 2 (9), silylated cyclopentadiene (CH 3 ) 3 SiC 5 (CH 3 ) 4 -CH 2 CH 2 PPh 2 (10) and cyclopentadiene HC 5 (CH 3 ) 4 CH 2 -with the C 5 (CH 3 ) 4 CH 2 CH 2 PPh 2 ligand [η 5 :η 1 -C 5 -(CH 3 ) 4 CH 2 CH 2 PPh 2 ]ZrCl 3 •THF (11),
40°C. Slow warm-up to room temperature, column chromatographic work-up (silica gel flash chromatography, elution with a 10 : 1 : 1 mixture of dichloromethane, petroleum ether (30-50°C) and diethyl ether), and Kugelrohr distillation (bath temperature 45 "C at 0.1 torr) afforded the a-methylene-p-lact