1191092-01-9

Upstream product

• 73004-47-4 1,2-Bis-(2',4',6'-trimethylphenylamino)-propan 
• 122-51-0 orthoformic acid triethyl ester 
• 75105-48-5 N,N'-dimesitylformamidine 
• 106-95-6 allyl bromide 
• 1282036-80-9 C₂₁H₂₆N₂ 

Relevant academic research and scientific papers

N-heterocyclic carbene complexes of Rh(I) and electronic effects on catalysts for 1,2-addition of phenylboronic acid to aldehydes

1,3-Diarylsubstituted imidazolinium salts, (NHC-H)Cl, 3, containing hydrogen or alkyl groups at the 4,5-positions of the imidazolidine ring, served as precursors to rhodium(I) complexes [RhCl(NHC)COD], 4, which were converted into cis-[RhCl(NHC)(CO)2] complexes, 5. All compounds prepared were characterized by elemental analyses, 1H NMR and 13C NMR. The relative σ-donor/π-acceptor strength of the NHC ligands was determined by means of IR spectroscopy of 5. The ability of NHCs in 4 to enchance activity was explored in the 1,2-addition of phenylboronic acid to aldehydes. A good correlation was observed between catalytic activity and the electron-donating power of the NHC ligands.

RUTHENIUM OLEFIN METATHESIS CATALYSTS BEARING N-HETEROCYCLIC CARBENE LIGANDS WITH SUBSTITUTED BACKBONE

This invention relates generally to olefin metathesis, more particularly, to tri- or tetra-substituted imidazoliniυm salts which are precursors to N-heterocyclic carbene (NHC) ligands with tri- or tetra-substituted irnidazolinium rings, organometallic rut