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ChemInform Abstract: Ring Transformation of 5-Amino (or Acylamino)-6-hydroxy (or benzoyloxy) methylpyrimidin-4(3H)-ones into 1H-Imidazoles.

✍ Scribed by T. UEDA; S. ASAI; K. OIJI; S. NAGAI; A. NAGATSU; J. SAKAKIBARA

Publisher
John Wiley and Sons
Year
2010
Weight
30 KB
Volume
28
Category
Article
ISSN
0931-7597

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✦ Synopsis

Ring Transformation of 5-Amino (or Acylamino)-6-hydroxy (or benzoyloxy) methylpyrimidin-4(3H)-ones into 1H-Imidazoles.

-Substituted pyrimidinones (I) and (III) readily undergo a ring contraction reaction in the presence of sodium hydroxide yielding the corresponding imidazole derivatives (II) and (IV). Under oxidative conditions the alkoxysubstituted imidazole (VII) is obtained together with transetherificated educt (VIII). -(UEDA, T.;

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