Motornov, Vladimir published the artcileCopper(I)-Catalyzed Regioselective Chan-Lam N2-Vinylation of 1,2,3-Triazoles and Tetrazoles, Name: (1-(tert-Butoxycarbonyl)-1,2,3,6-tetrahydropyridin-4-yl)boronic acid, the publication is Advanced Synthesis & Catalysis (2019), 361(14), 3306-3311, database is CAplus.
Copper-catalyzed coupling of π-deficient NH-azoles with vinylboronic acids or vinyltrifluoroborate salt provided a direct route to N2-vinyl-1,2,3-triazoles and N2-vinyltetrazoles. The coupling reaction was efficiently catalyzed by (phen)Cu(PPh3)Br with low catalyst loading (5 mol%) under base-free conditions. The method was applicable for vinylation of unsubstituted, monosubstituted and disubstituted 1,2,3-triazoles with various functionalities with high N2-selectivity.
Advanced Synthesis & Catalysis published new progress about 844501-00-4. 844501-00-4 belongs to pyridine-derivatives, auxiliary class Pyridine,Boronic acid and ester,Amide,Boronic Acids,Boronic acid and ester, name is (1-(tert-Butoxycarbonyl)-1,2,3,6-tetrahydropyridin-4-yl)boronic acid, and the molecular formula is C10H18BNO4, Name: (1-(tert-Butoxycarbonyl)-1,2,3,6-tetrahydropyridin-4-yl)boronic acid.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem