Sensitized photooxidation of furanoeremophilane with singlet oxygen and their biogenetic relationship
| Autor: | Yun-Sen Li, Shaoshun Li, Zheng-Tao Wang, Da-Yuan Zhu, Shi-De Luo |
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| Rok vydání: | 2006 |
| Předmět: |
Reaction mechanism
Magnetic Resonance Spectroscopy Light Ligularia Plant Science Asteraceae Photochemistry Biochemistry Plant Roots Analytical Chemistry chemistry.chemical_compound Mice Rose bengal Organic chemistry Structure–activity relationship Animals Toluidine Furanoeremophilane biology Molecular Structure Singlet Oxygen Singlet oxygen Organic Chemistry biology.organism_classification chemistry Hepatocytes Oxidation-Reduction Sesquiterpenes Methylene blue |
| Zdroj: | Natural product research. 20(8) |
| ISSN: | 1478-6419 |
| Popis: | In an attempt to explore the biogenetic relationship of furanoeremophilane derivatives and eremophilan-8 alpha, 12-olides, produced in Ligularia and their structure-activity relationship, we studied the photosensitized oxidation of furanoeremophilane - type sesquiterpenes. Under the condition of several solvents solution Irradiation with a 200 W incandescent lamp of furanoeremophilan-14 beta,6 alpha-olide isolated from Ligularia vellerea, in various solutions with methylene blue, rose bengal, toluidine blue and safranine T gave several products. The products were isolated by chromatographic procedure and their structures were elucidated as eremophilan-14 beta,6 alpha,8 alpha,12-diolide derivatives by NMR, IR and MS methods. A reaction mechanism has been proposed. |
| Databáze: | OpenAIRE |
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