Journal article
Utility of hydridotributyltin as both reductant and hydride transfer reagent in organotransition metal chemistry
Journal of organometallic chemistry, Vol.553(1-2), pp.397-403
02/1998
DOI: 10.1016/S0022-328X(97)00620-7
Abstract
The reaction of (η-C5Me4R)TaCl4 (R=Me, Cp*; Et) with two equivalents of Bu3SnH in toluene at 25°C yields (η-C5Me4R)2Ta2(μ-H) 2Cl4 in 92% yield (R=Me) or 63% (R=Et) along with Bu3SnCl and H2. The μ-H group is derived from the tin reagent, as shown by a deuterium labelling study. UV/vis spectra of the reaction mixture exhibit several isosbestic points during the reaction which are consistent with the absence of significant concentrations of intermediate(s). The ditantalum(IV) halide (η-C5Me4R)2Ta2Cl6 is not a major species on the pathway from (η-C5Me4R)TaCl4 to (η-C5Me4R)2Ta2(μ-H) 2Cl4, since the reaction of (η-C5Me4R)2Ta2Cl6 with two equivalents of Bu3SnH to form (η-C5Me4R)2Ta2(μ-H) 2Cl4 is significantly slower. Possible pathways for the formation of (η-C5Me4R)2Ta2(μ-H) 2Cl4 from (η-C5Me4R)TaCl4 are discussed.
Details
- Title: Subtitle
- Utility of hydridotributyltin as both reductant and hydride transfer reagent in organotransition metal chemistry
- Creators
- Ting-Yu LeeLouis Messerle
- Resource Type
- Journal article
- Publication Details
- Journal of organometallic chemistry, Vol.553(1-2), pp.397-403
- DOI
- 10.1016/S0022-328X(97)00620-7
- ISSN
- 0022-328X
- eISSN
- 1872-8561
- Language
- English
- Date published
- 02/1998
- Academic Unit
- Radiology; Chemistry
- Record Identifier
- 9984216712502771
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