Enantiomerically enriched sulfonamides were synthesized by the radical addition of an acetal to enantiomerically pure N-sulfinyl imines using dimethylzinc–air and boron trifluoride diethyl etherate. Higher levels of stereocontrol were observed by using a mesitylenesulfinyl group. Furthermore, an amine and an amino alcohol with high enantiomeric purity were obtainable from the sulfonamide product.
通过
乙缩醛与对映纯的N-亚磺
酰亚胺的自由基加成反应,使用二甲基
锌-空气和
三氟化硼乙醚酸盐合成了对映体富集的磺酰胺。使用
间三联苯亚磺酰基可以观察到更高的立体控制
水平。此外,可以从磺酰胺产品中获得对映体纯度高的胺和
氨基醇。