Application of 1293-65-8, hemistry, like all the natural sciences, begins with the direct observation of nature— in this case, of matter. In a document type is Article, molecular formula is C10Br2Fe, molecular weight is 335.76, and a compound is mentioned, 1293-65-8, 1,1′-Dibromoferrocene, introducing its new discovery.
The phosphorus-chiral diphosphine 1,1?-bis(1-naphthylphenylphosphino)ferrocene (1a) and its new electronically modified derivatives 1b-d bearing methoxy and/or trifluoromethyl groups in para positions of the phenyl rings were investigated as ligands in rhodium-catalyzed (asymmetric) hydroformylation. Depending on ligand basicity, high-pressure NMR and IR characterization of the respective (diphosphine) rhodium dicarbonyl hydride precursor complexes revealed subtle differences in the occupation of bis-equatorial (ee) and equatorialapical (ea) coordination geometries. The high ee:ea ratio of the four complexes contrasted with the clear ea preference observed for the related achiral compound dppf (1,1?-bis-(diphenylphosphino)ferrocene). In the hydroformylation of styrene the best result (50% ee) was obtained by employing the best pi-acceptor ligand 1c, incorporating two p-trifluoromethyl substituents. Substrate electronic variations using 4-methoxystyrene and 4-chlorostyrene showed a pronounced influence on turnover frequencies, branched/linear aldehyde product ratios, and enantiodiscrimation, whereas in the hydroformylation of 1-octene ligand electronic perturbations did affect only the rate, but not the selectivity of the reaction.
In conclusion, we affirm that quantitative kinetic descriptions of catalytic behavior continue to serve as an indispensable tool.Application of 1293-65-8. In my other articles, you can also check out more blogs about 1293-65-8
Reference：
Iron Catalysis in Organic Synthesis | Chemical Reviews,
Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion