Synthesis and Properties of 2,2'-Bipyridin-3-ols and -3,3'-diols
The synthesis of the 2-furyl ketones 5-7 and 13 and their reaction with ammonium acetate in boiling acetic acid to 3-substituted 2,2'-bipyridines and to 2-(2-pyrimidinyl)-3-pyridinol (14) via a ring-transformation reaction are described.Strong intramolecular hydrogen bonds are responsible for their physical and chemical properties.
Siemanowski, Werner,Witzel, Herbert
p. 1731 - 1739
(2007/10/02)
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