✦ LIBER ✦
An air oxidizable bimetallic palladium(II) catalyst for asymmetric allylic oxidation of olefins in acetic acid
✍ Scribed by Arab K. El-Qisiari; Hanan A. Qaseer; Patrick M. Henry
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- French
- Weight
- 68 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
A bimetallic palladium(II) complex containing a triketone ligand and a bridging diphosphine ligand oxidizes olefins in acetic acid to allylic acetates by a direct air oxidation, which does not require intermediate redox systems. When the diphosphine is chiral, an asymmetric reaction occurs which gives enantioselectivities between 52 and 78% for cyclic olefins.