AUGUSTYN, JAN A. N.;BEZUIDENHOUDT, BAREND C. B.;SWANEPOEL, ANNELIE;FERREI+, TETRAHEDRON, 46,(1990) N2, C. 4429-4442
作者:AUGUSTYN, JAN A. N.、BEZUIDENHOUDT, BAREND C. B.、SWANEPOEL, ANNELIE、FERREI+
DOI:——
日期:——
Enantioselective synthesis of flavonoids. Part 2. Poly-oxygenated α-hydroxydihydrochalcones and circular dichroic assessment of their absolute configuration
Chiral chalcone epoxides exhibiting the oxygenation patterns of naturally occurring flavonoids and isoflavonoids were transformed into the corresponding α-hydroxydihydrochalcones. The availability of both enantiomers permitted assessment of the absolute configuration at the single chiral centre by CD spectroscopy; such protocol being applicable to defining the configuration of some naturally occurring