the electrophilic N-F reagent Selectfluor™ to glycals. By subsequent treatment with nucleophiles, 2-deoxy-2-fluoro-aldoses and various C-1-substituted derivatives thereof are easily accessible. Furthermore, the reaction with D-galactal and D-arabinal proceeds stereoselectively, thus allowing the synthesis of 2-deoxy-2-fluoro-D-galactose- and -D-arabinose-derivatives in multi-gram quantities.
一种新型的反应性ñ - (2-
脱氧-2-
氟-糖基)化合物通过区域选择性形成顺亲电子的-addition Ñ -F试剂的Selectfluor™来
烯糖。通过随后用亲核试剂进行处理,可以容易地获得2-
脱氧-2-
氟醛糖及其各种C-1-取代的衍
生物。此外,与
D-半乳糖和
D-阿拉伯糖的反应是立体选择性地进行的,因此可以合成多克量的2-
脱氧-2-
氟-
D-半乳糖-和-
D-阿拉伯糖衍
生物。