Lo, Pui Kin Tony published the artcileNickel(II)-Catalyzed Synthesis of Sulfinates from Aryl and Heteroaryl Boronic Acids and the Sulfur Dioxide Surrogate DABSO, Recommanded Product: Imidazo[1,2-a]pyridine-6-boronic acid, the publication is ACS Catalysis (2019), 9(12), 10668-10673, database is CAplus.
A redox-neutral Ni(II)-catalyzed sulfination of readily available aryl and heteroaryl boronic acids is reported. Using the combination of com. available, air-stable NiBr2ยท(glyme), a com. available phenanthroline ligand and DABSO, boronic acids are efficiently converted to the corresponding sulfinate salts, which can be further elaborated to valuable sulfonyl-containing groups, including sulfones, sulfonamides, sulfonyl fluorides, and sulfonate esters. The catalyst loading can be reduced to 2.5 mol % on a gram scale. This practically simple protocol tolerates an unprecedented range of pharmaceutically relevant and electron-poor (hetero)aryl boronic acids, allowing the direct synthesis of active pharmaceutical ingredients.
ACS Catalysis published new progress about 913835-63-9. 913835-63-9 belongs to imidazoles-derivatives, auxiliary class Other Aromatic Heterocyclic,Boronic acid and ester,Boronic Acids,Boronic acid and ester, name is Imidazo[1,2-a]pyridine-6-boronic acid, and the molecular formula is C7H7BN2O2, Recommanded Product: Imidazo[1,2-a]pyridine-6-boronic acid.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem