作者:Andrea Vasella、Christian Witzig、Jose-Luis Chiara、Manuel Martin-Lomas
DOI:10.1002/hlca.19910740842
日期:1991.12.11
trifluoromethanesulfonyl azide (TfN3) to 2-amino-2-deoxy-glycoses constitutes a high-yielding, simple procedure for the preparation of partially protected or unprotected 2-azido-2-deoxy-aldoses. Thus, the D-allosamine derivative 2 gave 93% of 3, while diazo transfer to D-glucosamine, D-mannosamine, and D-galactosamine, followed by acetylation, yielded the azides 5, 7, and 9 in yields of 74–91, 65, and 70%, respectively
重氮从三氟甲磺酰基叠氮化物(TfN 3)转移至2-氨基-2-脱氧葡萄糖构成了制备部分保护或未保护的2-叠氮基2-脱氧醛糖的高产率,简单方法。因此,d-allosamine衍生物2得到的93%3,而重氮基转移到d葡糖胺,d甘露糖胺,和d半乳糖胺,随后通过乙酰化,得到叠氮化物5,7,和9中的74-91的产率,分别为65%和70%。