Stereoselective synthesis of isoflavonoids. (R)- and (S)-isoflavens
作者:Marietjie Versteeg、Barend C.B. Bezuidenhoudt、Daneel Ferreira
DOI:10.1016/s0040-4020(98)01147-8
日期:1999.3
α-Benzylation of (+)- and (−)-N-phenylacetyl imidazolidinones with 2-O-methoxy-methylbezyl bromides, followed by reductive removal of the chiral auxiliary and cyclization, afforded oxygenated isoflavans in excellent enantiomeric excess and yield.
(+)-和(-)-N-苯基乙酰基咪唑啉酮与2 - O-甲氧基-甲基苄基溴的α-苄基化,然后还原除去手性助剂并环化,得到氧化的异黄烷醇,其对映异构体过量且收率优异。