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Enantioselective synthesis of flavonoids. Part 51. Poly-oxygenated β-hydroxydihydrochalcones

✍ Scribed by Reinier J.J. Nel; Pieter S. van Heerden; Hendrik van Rensburg; Daneel Ferreira

Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
179 KB
Volume
39
Category
Article
ISSN
0040-4039

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✦ Synopsis

Epoxidation of a series of poly--oxygenated chalcones with urea-hydrogen peroxide complex in THF in the presence of DBU and poly-(L)-or -(D)-leucine, followed by TBTH/AIBN catalysed ringopening, afforded I~-hydroxydihydrochalcones in moderate to high enantiomeric excess and yield.

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