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Pentacarbonyliron(0) Photocatalyzed Reactions of Trialkylsilanes with Alkenes by Mark A. Schroeder; Mark S. Wrighton is a Chemistry article available to read on EtoBox.
What is Pentacarbonyliron(0) Photocatalyzed Reactions of Trialkylsilanes with Alkenes about?
## We report results of the near-ultraviolet irradiation of Fe(CO)5 in the presence of R$iH (R = Me or Et) and an alkene. Good conversion to a mixture of alkane, (alkyl)SiR3, and (alkenyl)SiR, products obtains\_ For terminal alkenes, conversion to products generally exceeds 80%. The distribution of products depends on the alkene/R$iH ratio and on the reaction temperature (0-50°C). Terminal, sterically unhindered alkenes react fastest, and give organosilicon products which result from addition of the RJSi moiety to the terminal carbon. With R&D starting silane extensive protium/deuterium exchange can be detected in the starting alkene and silane at intermediate stages of the reaction. Quantum yields for consumption of the starting materials exceed unity, implicating photocatalysis. The key photogenerated species is proposed to be (H)(R,Si)Fe(CO),(alkene) which can be used to rationalize the formation of all products. Also, this intermediate accommodates a temperature dependent photocatalysis as well as a reagent concentration ratio dependence on the final product distribution. \_4t low temperature and low a.Ikene/silane ratio the alkylsilane product dominates, but at higher temperat
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It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Mark A. Schroeder; Mark S. Wrighton
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)
- Published
- 1977
- Language
- EN
- Field
- Chemistry (Physical Sciences)