Synthesen von hydroxylierten Bipyridinen, III. Synthese von unsymmetrischen und symmetrischen Dihydroxybipyridinen

✍ Scribed by Dehmlow, Eckehard V. ;Sleegers, Arthur

• Publisher: John Wiley and Sons
• Year: 1992
• Tongue: English
• Weight: 558 KB
• Volume: 1992
• Category: Article
• ISSN: 0947-3440
• DOI: 10.1002/jlac.1992199201157

✦ Synopsis

Syntheses of Hydroxylated Bipyridines, III. — Synthesis of Unsymmetrically and Symmetrically Structured Dihydroxybipyridines

Fifteen symmetrical and asymmetrical dimethoxybipyridines and the pertinent diols are prepared and characterized. Reductive cross coupling of halopyridines with Ni(0) may result in complex mixtures. The same is true for an alternative reaction of (trimethylstannyl)pyridines with halopyridines in the presence of Pd(0). UV, ^1^H‐, and ^13^C‐NMR spectra of the bipyridine derivatives are tabulated.