The kinetics and thermodynamics of ketalization of tetrahydroxyketones are examined in the synthesis of the ketal core of zaragozic acid Bx3.
Synthesis of bicyclic ketals related to zaragozic acid by a novel photoannulation
β Scribed by Kevin D Freeman-Cook; Randall L Halcomb
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 230 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
Model studies towards the bicyclic acetal core 1 of the zaragozic acids, based on the epoxide cyclisation reaction 4 ---) 3, are described. Epoxide 14 provides the desired bicyclic acetal skeleton 16, while epoxide 27 leads through 28 to an isomeric acetal 30.
Studies Towards the Synthesis of the Zaragozic Acids: A Novel Epoxide Cyclization Approach to the Formation of the Bicyclic Acetal Core. -Model studies towards the synthesis of the bicyclic core of zaragozic acid are reported. The strategy is based on an epoxide cyclization reaction. Thus, treatmen