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Keywords:

  • other 6-membered heterocycles (with 3 or more heteroatoms);
  • other 5-membered heterocycles (with 3 or more heteroatoms);
  • antinematodal activity

Abstract

Dispiro peroxides (III),(VI),(VIII), and (X) are prepared either by coozonolysis of oxime ether (I) and ketoester (II), or by acid-catalyzed condensation of β-hydroperoxy alcohols (V) with adamantanone (IV) or cyclohexanone (IX), or by Re2O7-catalyzed condensation of dihydroperoxide esters (VII) with adamantanone (IV).