Imidazoliophosphines are True N‐Heterocyclic Carbene (NHC)–Phosphenium Adducts
作者: Ibrahim AbdellahDr. Christine LepetitDr. Yves CanacCarine DuhayonProf. Remi Chauvin
作者单位: 1CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, 31077 Toulouse (France), Fax: (+33) 561‐553‐003
2 Université de Toulouse, UPS, INP, LCC, 31077 Toulouse (France)
3 CNRS, LCC (Laboratoire de Chimie de Coordination), 205, route de Narbonne, 31077 Toulouse (France), Fax: (+33) 561‐553‐003
刊名: Chemistry – A European Journal, 2010, Vol.16 (44), pp.13095-13108
来源数据库: Wiley Journal
DOI: 10.1002/chem.201001721
关键词: dative bondingelectrostatic interactionsN‐heterocyclic carbenespalladiumphosphenium
原始语种摘要: Abstract(#br)Whereas the external nucleophilic reactivity of α‐amidiniophosphines has been previously illustrated by their complexation to transition‐metal centers, their internal electrophilic reactivity is herein investigated by using BIMIONAP (BIMIONAP=N‐methylated BIMINAP cation, BIMINAP=formal contraction of the acronyms BIMIP=2,2′‐bis(diphenylphosphino)‐1,1′‐bibenzimidazole and BINAP=2,2′‐bis(diphenylphosphino)‐1,1′‐binaphthyl). Reaction of tetraethylammonium chloride with free BIMIONAP is found to induce heterolytic cleavage of the N2CP bond to give chlorodiphenylphosphine and a transient phosphine–N‐heterocyclic carbene (NHC) species that is trapped in situ by protonation to the corresponding phosphine–benzimidazolium cation. When the chloride anion reacts with the...
全文获取路径: Wiley  (合作)
分享到:

×
关键词翻译
关键词翻译
  • phosphine 磷化氢
  • heterocyclic 杂环的
  • moiety 一部分
  • nucleophile 亲核物质
  • chloride 氯化物
  • nucleophilic 亲核的
  • NHC Navigator's Hand Controller
  • binaphthyl 联萘
  • electrophilic 亲电的
  • palladium