Enantioselective synthesis of flavonoids. Part 1. Poly-Oxygenated chalcone epoxides
作者:Jan A.N. Augustyn、C.B. Barend、Bezuidenhoudt、Daneel Ferreira
DOI:10.1016/s0040-4020(01)82043-3
日期:1990.1
Epoxidation of a series of poly-oxygenated chalcones with H2O2 in the presence of poly-α-aminoacid catalysts afforded chiral aromatic oxygenated epoxides in moderate to high optical yields; their absolute configurations were determined by CD spectroscopy. These chalcone epoxides could, in principle, be used as chirons for enantiomerically enriched dihydroflavonols.
在聚-α-氨基酸催化剂的存在下,用H 2 O 2对一系列多加氧的查耳酮进行环氧化,以中等至高的光学收率得到手性芳族加氧的环氧化物。它们的绝对构型由CD光谱法确定。这些查耳酮环氧化物原则上可用作对映异构体富集的二氢黄酮醇的Chirons。