Enantioselective Synthesis of (<i>S</i>)-3-Hydroxy-3-phenyl-3,4-dihydroquinolin-2(1<i>H</i>)-one Ring System
作者:José Pedro、Gonzalo Blay、Luz Cardona、Lucas Torres
DOI:10.1055/s-2006-958928
日期:2007.1
enantiomerically pure (S)-3-hydroxy-3-phenyl-3,4-dihydroquinolin-2(1H)-ones was prepared in good yields according to a two-step synthesis using a benzylation of the sodium enolate of the (2S,5S)-cis-2-tert-butyl-5-phenyl-1,3-dioxolan-4-one with substituted o-nitrobenzyl bromides followed by reduction of the nitro group to amine with concomitant intramolecular aminolysis of the dioxolanone ring.
根据使用烯醇钠的苄基化的两步合成,以良好的收率制备了一系列新的对映体纯的(S)-3-羟基-3-苯基-3,4-二氢喹啉-2(1H)-酮。 (2S,5S)-cis-2-tert-butyl-5-phenyl-1,3-dioxolan-4-one 与取代的邻硝基苄基溴,然后将硝基还原为胺,同时发生二氧戊环的分子内氨解戒指。