The reaction of 2-bromo-2-deoxy-2-fluoro-hexopyranose and -pentopyranose compounds from the d-gluco, d-galacto, l-rhamno, l-fuco, and l-arabino carbohydrate series with (diacetoxyiodo)benzene and iodine, under visible light irradiation conditions, generated the corresponding 1-bromo-1-deoxy-1-fluoro-1-iodo-alditols with one less carbon. In the case of the d-galacto derivative, the diastereoisomeric
的2-
溴-2-脱氧-2-
氟-六
吡喃糖和-pentopyranose化合物从D-反应
葡糖,
D-半乳糖,1-
鼠李糖,1-岩藻,和1-
阿拉伯糖系列(
二乙酰氧基
碘)苯和
碘在可见光照射条件下,生成了碳原子数少的相应的1-
溴-1-脱氧-1-
氟-1-
碘-醛糖醇。在
D-半乳糖衍
生物的情况下,可以对非对映异构混合物进行色谱分离,并通过(1 R)-异构体的X射线晶体分析确定绝对构型。