Bearing in mind that there is a significant structural difference between IPr and IPr* ligands, that translated in different reactivity for several olefin metathesis reactions, here by means of DFT we characterize where the NHC ligand plays a more active role and where it is a simple spectator,...
Application IPr*HCl is a bulky, flexible NHC ligand used for organometallic catalysis. Other Notes IPr* an easily accessible highly hindered N-heterocyclic carbene Related Products related product Product No. Description Pricing 916161 [Pd(IPr)(AN)Cl2], ≥95% Expand 915165 [Pd(IPr)(3-CF3-AN...
IPr#HCl is sterically-bulky, easily-accessible NHC ligand that can be used in a broad range of catalytic reactions, including cross-coupling reactions, hydrofunctionalizations and element addition reactions using different metals, including but not limited to Pd, Ni, Au, Ag, Cu, Pt, Ru. 其他...
The preparation of the novel, well-defined [Pd(IPr*)(3-Cl-pyridinyl)Cl2] complex is described. The steric parameters of the ligand as well as its reactivity in the Buchwald–Hartwig amination were directly compared to other [Pd(NHC)(3-Cl-pyridinyl)Cl2] and [Pd(IPr*)(LX)Cl)] precata...
Ancillary ligandNovel NHC–Pd complexes with pyridine-2-carboxylate or pyridine-2,6-dicarboxylate ligand.•Prominent reactivity in the sterically hindered C–N coupling reactions.•Effect of ancillary ligands on catalytic activity of NHC–Pd complexes.Journal of Organometallic ChemistryYan-Jing LiJin-...
IPr* is reported as the largest N-heterocyclic carbene (NHC) to date for [Pd(NHC)(cin)Cl] complexes, explaining the high reactivity observed for this complex in this challenging transformation.关键词:biaryls cross-coupling N-heterocyclic carbenes palladium ...
Bearing in mind that there is a significant structural difference between IPr and IPr* ligands, that translated in different reactivity for several olefin metathesis reactions, here by means of DFT we characterize where the NHC ligand plays a more active role and where it is a...
Steric Maps to Evaluate the Role of Steric Hindrance on the IPr NHC Liganddoi:10.1016/j.procs.2013.05.249Albert PoaterLaura FaliveneCésar A. Urbina-BlancoSimone ManziniSteven P. NolanLuigi CavalloElsevierInternational Conference on Conceptual Structures...
This account highlights the synthesis and applications of one of the very bulky NHC ligands, IPr* (1,3-bis(2,6-bis(diphenylmethyl)-4-methylphenyl)imidazo-2-ylidene). This ligand and some of its derivatives have been found very effective in several catalytic applications and have enabled the...
Bidentate alkoxy-NHC ligand for asymm ZnEt2 Zn(iPr)2 Cu(OTf)2 cuprate add enone ethylation propylationMauduit, M