1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene

Roy A. Kelly, Gabriela A. Grasa, Steven P. Nolan, David J. Nelson

Research output: Contribution to specialist publicationArticle

Abstract

Alternate Name: IPr.

Solubility: soluble in THF, hexane, toluene, ether, and most organic solvents.

Analysis of Reagent Purity: elemental microanalysis, NMR spectroscopy.

Preparative Methods: can be prepared under inert atmosphere3 utilizing dry, oxygen-free solvents.4 IPr·HCl2 and KOtBu were added to a NaH suspension in THF in the glove box (eq 1). The mixture was stirred for 1 h at room temperature, for 2 h at 60 °C, followed by overnight stirring at room temperature. THF was removed in vacuo, the product was extracted with hot hexanes, filtered through a pad of Celite, and the solvent removed in vacuo resulting in a white solid.2
Original languageEnglish
Specialist publicatione-EROS Encyclopaedia of Reagents for Organic Synthesis
PublisherJohn Wiley & Sons Inc.
DOIs
Publication statusPublished - 31 Mar 2016

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Keywords

  • reagents
  • organic synthesis

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