Xu, Chen published the artcileSynthesis and Structural Characterization of Palladacycles with Polydentate Ligands by a Stepwise Coupling Route – Palladacycles Containing Halides as Efficient Catalysts and Substrates, Related Products of pyridine-derivatives, the publication is European Journal of Inorganic Chemistry (2011), 2011(31), 4878-4888, database is CAplus.
A series of ferrocenyl palladacycles with polydentate ligands were conveniently prepared by the Suzuki coupling reactions of a halide-containing ferrocenyl palladacycle [PdCl({(η5-C5H5)}Fe{(η5-C5H3)N2C4H2Cl})(PPh3)] (1) and arylboronic acids without addnl. palladium catalysis. In the absence of addnl. base, amination also occurred in high yield. This new protocol was successfully applied to the Suzuki coupling reactions of the analogous halide-containing palladacycle [PdCl({(η5-C5H5)}Fe{(η5-C5H3)NC5H3Br})(PPh3)] (15) and Buchwald-Hartwig amination of the analogous complex [PdCl({(η5-C5H5)}Fe{(η5-C5H3)NC5H3Br})(DCPAB)] (32), where DCPAB = 2-dicyclohexylphosphanyl-2′-(N,N-dimethylamino)biphenyl. The halide-containing palladacycles act as efficient catalysts and substrates in the coupling reactions. 37 New examples have been fully characterized by elemental anal., IR and 1H NMR spectroscopy, and ESI-MS. Addnl., the mol. structures of eight compounds were determined by single-crystal x-ray diffraction, and many types of intermol. C-H···Cl (O, N, π) interactions and π-π interactions were found in the crystal structures of these palladacycles.
European Journal of Inorganic Chemistry published new progress about 612845-44-0. 612845-44-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Boronic acid and ester,Ether,Boronic Acids,Boronic acid and ester, name is (6-Ethoxypyridin-3-yl)boronic acid, and the molecular formula is C20H19NO4, Related Products of pyridine-derivatives.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem