Parry, Paul R. published the artcileNew shelf-stable halo- and alkoxy-substituted pyridylboronic acids and their Suzuki cross-coupling reactions to yield heteroarylpyridines, Safety of (6-Ethoxypyridin-3-yl)boronic acid, the publication is Synthesis (2003), 1035-1038, database is CAplus.
New shelf-stable pyridylboronic acids have been synthesized: bromine-lithium exchange followed by reaction with triisopropylborate yielded 2-fluoro-5-pyridylboronic acid, 3-bromo-5-pyridylboronic acid and 2-ethoxy-5-pyridylboronic acid; directed lithiation followed by reaction with trimethylborate or triisopropylborate afforded 2-methoxy-3-pyridylboronic acid, 3-bromo-6-methoxy-4-pyridylboronic acid and 3-bromo-6-ethoxy-4-pyridylboronic acid. Cross-coupling of pyridylboronic acids with 3-bromoquinoline [Cs2CO3, Pd(PPh3)2Cl2, 1,4-dioxane, 95 °C] gave pyridinylquinoline derivatives in 50-77% yields. Cross-coupling of (3-bromo-5-ethoxy-4-pyridinyl)boronic acid with 2-bromo-5-nitrothiophene gave 3-bromo-4-(5-nitro-2-thienyl)-6-ethoxypyridine (18).
Synthesis 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 C7H10BNO3, Safety of (6-Ethoxypyridin-3-yl)boronic acid.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem