Optically pure new Evans auxiliary analogs, (4R)- and (4S)-4-(2-naphthyl)oxazolidin-2-one, have been synthesized by using the Sharpless catalytic asymmetric aminohydroxylation reaction (Sharpless AA). The concise two-step synthesis involves a unique solution-to-solid Sharpless AA process and new neat cyclization conditions.
利用 Sharpless 催化不对称
氨基羟化反应(Sharpless
AA)合成了光学纯度极高的新型伊文思辅助类似物 (4R)- 和 (4S)-4-(2-naphthyl)oxazolidin-2-one 。这种简洁的两步合成涉及一种独特的从溶液到固体的 Sharpless
AA 工艺和新的整齐环化条件。