Beng, Timothy K. published the artcileRegiocontrolled synthesis of (hetero)aryl and alkenyl dehydropyrrolidines, dehydropiperidines and azepenes by Ru-catalyzed, heteroatom-directed α-C-H activation/cross-coupling of cyclic enamides with boronic acids, Recommanded Product: 2-Pyridinylboronic acid, the publication is Organic & Biomolecular Chemistry (2016), 14(3), 830-834, database is CAplus and MEDLINE.
The synthesis of α-aryl and alkenyl pyrrolidine-, piperidine-, and azepane derivatives, through the intermediacy of cyclic enamides is described. The desired outcome is achieved through ruthenium-catalyzed, site-selective sp2 C-H activation/cross-coupling with aryl and alkenyl boronic acids. The regioselectivity (α-sp2vs. α-sp3vs. β-sp2 C-H functionalization) is governed by the rate differences between sp2 and sp3 C-H activation and the necessity for chelation between the ruthenium metal and the carbonyl directing group.
Organic & Biomolecular Chemistry published new progress about 197958-29-5. 197958-29-5 belongs to pyridine-derivatives, auxiliary class Pyridine,Boronic acid and ester, name is 2-Pyridinylboronic acid, and the molecular formula is C5H6BNO2, Recommanded Product: 2-Pyridinylboronic acid.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem