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Synthesen von hydroxylierten Bipyridinen, III. Synthese von unsymmetrischen und symmetrischen Dihydroxybipyridinen
Author(s) -
Dehmlow Eckehard V.,
Sleegers Arthur
Publication year - 1992
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.1992199201157
Subject(s) - chemistry
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.