Related Products of 12180-80-2, 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 C24H10FeO2, molecular weight is 386.18, and a compound is mentioned, 12180-80-2, 1,1′-Dibenzoylferrocene, introducing its new discovery.
The structure of protonated ferrocenes has been investigated using 1H NMR and 57Fe Moessbauer spectroscopy.The ketones were fully protonated in CF3CO2H and in 70percent H2SO4/H2O.In more concentrated sulphuric acid < > 90percent H2SO4/H2O) rapid heteroannular sulphonation occurred.No evidence was obtained of any iron protonation in these systems.For the para substituted aromatic derivatives C5H5FeC5H4COC6H4X the NMR data indicates steric inhibition to resonance. 1,1′-Diketones are doubly protonated in strongly acid media (98percent H2SO4, CF3SO3H).Moessbauer data on the solid ketones showed decrease in quadrupole splitting (QS), relative to ferrocene itself, of about 0.12 mm s-1 for each successive acyl function added.For solid solutions of the protonated ketones in CF3CO2H this decrease (DeltaQS) was much larger at about 0.28 mm s-1.The results are interpreted as involving electron withdrawal from ring-based orbitals (epsilon1), rather than the iron-based orbitals (epsilon2).In the aromatic series, DeltaQS was significantly smaller for electron withdrawing substituents.
In conclusion, we affirm that quantitative kinetic descriptions of catalytic behavior continue to serve as an indispensable tool.Related Products of 12180-80-2. In my other articles, you can also check out more blogs about 12180-80-2
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