On the P‐Coordinating Limit of NHC–Phosphenium Cations toward Rh<sup>I</sup> Centers
作者: Carine MaalikiDr. Christine LepetitDr. Yves CanacDr. Christian BijaniCarine DuhayonProf. Remi Chauvin
作者单位: 1Laboratoire de Chimie de Coordination (LCC), CNRS, 205, Route de Narbonne, 31077 Toulouse (France), Fax: (+33) 561‐553‐003
2 Université de Toulouse, UPS, INP; LCC, 31077 Toulouse (France)
3 Laboratoire de Chimie de Coordination (LCC), CNRS, 205, Route de Narbonne, 31077 Toulouse (France), Fax: (+33) 561‐553‐003
刊名: Chemistry – A European Journal, 2012, Vol.18 (25), pp.7705-7714
来源数据库: Wiley Journal
DOI: 10.1002/chem.201104046
关键词: carbene ligandsdative bondsdonor–acceptor systemsheterocyclesphosphane ligandsrhodium
原始语种摘要: Abstract(#br)Two types of imidazoliophosphane with additional electron‐withdrawing substituents, such as alkoxy or imidazolio groups, are experimentally described and theoretically studied. Diethyl N , N ′‐2,4,6‐methyl(phenyl)imidazoliophosphonite is shown to retain a P‐coordinating ability toward a {RhCl(cod)} (cod=cycloocta‐1,5‐diene) center, thus competing with the cleavage of the labile CP bond. Derivatives of N , N ′‐phenylene‐bridged diimidazolylphenylphosphane were isolated in good yield. Whereas the dicationic phosphane proved to be inert in the presence of [{RhCl(cod)}2], the monocationic counterpart was shown to retain the P‐coordinating ability toward a {RhCl(cod)} center, thus competing with the N‐coordinating ability of the nonmethylated imidazolyl substituent....
全文获取路径: Wiley  (合作)
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关键词翻译
关键词翻译
  • phenyl 苯基
  • coordinating 协调
  • alkoxy 烷氧基
  • withdrawing 回收
  • sup 吃晚饭
  • substituent 取代基
  • carbene 炭青质
  • toward 
  • acceptor 收体
  • imidazolyl 二氮杂茂基