An organocatalytic route to the synthesis of (6S)-5,6-dihydro-6-[(2R)-2-hydroxy-6-phenylhexyl]-2H-pyran-2-one and ravensara lactones |
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Authors: | Namrata Dwivedi Divya Tripathi Pradeep Kumar |
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Affiliation: | Organic Chemistry Division, National Chemical Laboratory, Pune 411 008, India |
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Abstract: | An organocatalytic enantioselective synthesis of the title compounds has been achieved. The stereogenic centers were generated by the iterative use of proline catalyzed α-aminoxylations and HWE olefination of aldehydes while the lactone ring was constructed by ring closing metathesis. |
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