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Frustrated Lewis Pair‐Like Reactivity of Rare‐Earth Metal Complexes: 1,4‐Addition Reactions and Polymerizations of Conjugated Polar Alkenes

Xu, Pengfei ; Yao, Yingming ; Xu, Xin

Chemistry – A European Journal, 26 January 2017, Vol.23(6), pp.1263-1267 [Tạp chí có phản biện]

ISSN: 0947-6539 ; E-ISSN: 1521-3765 ; DOI: 10.1002/chem.201605622

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  • Nhan đề:
    Frustrated Lewis Pair‐Like Reactivity of Rare‐Earth Metal Complexes: 1,4‐Addition Reactions and Polymerizations of Conjugated Polar Alkenes
  • Tác giả: Xu, Pengfei ; Yao, Yingming ; Xu, Xin
  • Chủ đề: Cooperative Effects ; Frustrated Lewis Pairs ; Polymerization ; Rare Earths
  • Là 1 phần của: Chemistry – A European Journal, 26 January 2017, Vol.23(6), pp.1263-1267
  • Mô tả: Three rare‐earth aryloxide ion pairs {[L1REOAr]/[B(CF)]; L1=CHC(2,6‐PrCHN)CHC(CH)(NCHCHPPh); RE=Sc, Y, Lu; Ar=2,6‐BuCH} were reported that feature rare‐earth/phosphorus (RE/P) combinations exhibiting frustrated Lewis pair (FLP)‐like 1,4‐addition reactions towards conjugated carbonyl substrates (e.g., enone, ynone, and acrylic substrates). Furthermore, these RE/P complexes were found to be effective catalysts for the polymerization of conjugated polar alkene monomers. Mechanistic studies revealed that the rare‐earth metal‐catalyzed polymerizations were initiated by new FLP‐type 1,4‐additions rather than traditional and ubiquitous covalent RE−E (E=H, C, N, etc.) bond insertion or single‐electron transfer. : Cationic rare‐earth aryloxides featuring rare‐earth/phosphorus combinations exhibit frustrated Lewis pair (FLP)‐like 1,4‐addition reactions to conjugated carbonyl substrates. Furthermore, polymerization of conjugated polar alkene monomers is realized and the FLP‐type 1,4‐addition is proven to be the initial step of the polymerization.
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0947-6539 ; E-ISSN: 1521-3765 ; DOI: 10.1002/chem.201605622

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