《A directing group-assisted ruthenium-catalyzed approach to access meta-nitrated phenols》 was written by Sasmal, Sheuli; Sinha, Soumya Kumar; Lahiri, Goutam Kumar; Maiti, Debabrata. Name: 2-Bromo-5-methylpyridine And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2020. The article conveys some information:
Meta-Selective C-H nitration of phenol derivatives RC6H4OR1 (R = H, 4-Me, 2-MeO, 4-Ph, etc.; R1 = pyridin-2-yl, 5-methylpyridin-2-yl, pyrimidin-2-yl) was developed using a Ru-catalyzed σ-activation strategy. Cu(NO3)2.3H2O was employed as the nitrating source, whereas Ru2(CO)12 was found to be the most suitable metal catalyst for the protocol. Mechanistic studies suggested involvement of an ortho-CAr-H metal intermediate, which promoted meta-electrophilic aromatic substitution and silver-assisted free-radical pathway. The experimental process involved the reaction of 2-Bromo-5-methylpyridine(cas: 3510-66-5Name: 2-Bromo-5-methylpyridine)
2-Bromo-5-methylpyridine(cas: 3510-66-5) belongs to pyridine. Pyridine is a relatively complex molecule and exhibits a number of different bands in IR spectra. Among others, the bands characterizing the ν8a and ν19b modes have been found to be sensitive to the coordination or protonation of the molecule. Note that the band that is diagnostic for the PyH+ ion at about 1545 cm− 1 (ν19b mode) does not overlap with any of the other bands.Name: 2-Bromo-5-methylpyridine