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2005
Dioxane derivatives
R 0470
Ring-Opening of Unsymmetrical 1,2-Dioxines Using Cobalt(II) Salen Complexes.
— The title reaction can lead to γ-hydroxyenones of type (II) and (III) and dioxiranes.
23- 150 Their
ratio is strongly dependent on the steric nature of the substituents. Temperature
and solvent have only small effects on the regioselectivity. Trapping of the cleavage
products provides access to cyclopropanes and dienoates as well as furan derivatives.
— (GREATREX, B. W.; TAYLOR*, D. K.; J. Org. Chem. 70 (2005) 2, 470-476;
Dep. Chem., Univ. Adelaide, Adelaide, South Aust. 5005, Australia; Eng.) —
Jannicke
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