《Iridium-Catalyzed ortho-C-H Borylation of Thioanisole Derivatives Using Bipyridine-Type Ligand》 was written by Zeng, Jialin; Naito, Morio; Torigoe, Takeru; Yamanaka, Masahiro; Kuninobu, Yoichiro. Safety of 2,5-Dibromopyridine And the article was included in Organic Letters in 2020. The article conveys some information:
A simple iridium catalytic system was developed that allows for a variety of 2-borylthioanisoles, e.g. I, to be easily synthesized via ortho-selective C-H borylation of thioanisole derivatives Once introduced, boryl and methylthio groups were converted by palladium-catalyzed transformations. D. functional theory calculations revealed that weak interactions, such as hydrogen bonding between the C-H bond of the SCH3 group and the oxygen atom of the boryl ligand, control the ortho-selectivity. The results came from multiple reactions, including the reaction of 2,5-Dibromopyridine(cas: 624-28-2Safety of 2,5-Dibromopyridine)
2,5-Dibromopyridine(cas: 624-28-2) 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.Safety of 2,5-Dibromopyridine