The author of 《Palladium-Catalyzed Regioselective C-H Iodination of Unactivated Alkenes》 were Schreib, Benedikt S.; Carreira, Erick M.. And the article was published in Journal of the American Chemical Society in 2019. Quality Control of Picolinic acid The author mentioned the following in the article:
A palladium-catalyzed C-H iodination of unactivated alkenes is reported. A picolinamide directing group enables the regioselective functionalization of a wide array of olefins to furnish iodination products as single stereoisomers. Mechanistic studies suggest the reversible formation of a six-membered alkenyl palladacycle intermediate through a turnover-limiting C-H activation. In the part of experimental materials, we found many familiar compounds, such as Picolinic acid(cas: 98-98-6Quality Control of Picolinic acid)
Picolinic acid(cas: 98-98-6) is used as a chelate for alkaline earth metals. Used to prepare picolinato ligated transition metal complexes. In synthetic organic chemistry, has been used as a substrate in the Mitsunobu reaction and in the Hammick reaction.Quality Control of Picolinic acid