2017年
Exploring the catalytic activity of Lewis-acidic uranyl complexes in the nucleophilic acyl substitution of acid anhydrides
RSC Advances
- ,
- 巻
- 7
- 号
- 20
- 開始ページ
- 12201
- 終了ページ
- 12207
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1039/c6ra27796a
- 出版者・発行元
- ROYAL SOC CHEMISTRY
The catalytic activities of several uranyl complexes, such as N,N'-disalicylid ene-o-phenelyenediaminato( ethanol) dioxouranium(VI) (UO2(salophen) EtOH), bis(dibenzoylmethanato)(ethanol) dioxouranium(VI) (UO2(dbm)(2)E tOH), pentakis(N,N-dimethylformamide) dioxouranium(VI) ([UO2(DMF)(5)] (2+)), and tetrakis(triphenylphosphine oxide) dioxouranium(VI) ([UO2(OPPh3) (4)](2+)), were examined in the nucleophilic acyl substitution of acid anhydrides. Among them, [UO2(OPPh3)(4)](2+) was the most efficient to give ethyl acetate and acetic acid from acetic anhydride (Ac2O) and ethanol, and was resistant towards decomposition during the catalytic reaction. Several nucleophiles were also subjected to the catalytic acylation reaction using acetic and pivalic anhydride. Kinetic and spectroscopic studies suggested that [UO2(OPPh3)(4) ](2+) interacts with Ac2O to form [UO2(Ac2O)(OPPh3)(3)](2+). Interaction of this actual catalyst with additional Ac2O determines the rate of the overall nucleophilic acyl substitution reaction.
- リンク情報
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- DOI
- https://doi.org/10.1039/c6ra27796a
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000395873500046&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-85013668416&partnerID=MN8TOARS
- ID情報
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- DOI : 10.1039/c6ra27796a
- ISSN : 2046-2069
- ORCIDのPut Code : 40831853
- SCOPUS ID : 85013668416
- Web of Science ID : WOS:000395873500046