Synthesis of Guanidines From Azides: A General and Straightforward Methodology In Carbohydrate Chemistry
作者:Andrés G. Santana、Cosme G. Francisco、Ernesto Suárez、Concepción C. González
DOI:10.1021/jo100876r
日期:2010.8.6
The ability of the guanidinylating reagent N′,N′′-diBoc-N-triflyl-guanidine (GN-Tf) to react with in situ formed free amines from azides in carbohydrate scaffolds was explored. This reaction proved to be an efficient method to prepare guanidine derivatives in a one-pot manner with good to excellent yields, either with primary or secondary azides with different substitution patterns. Labile protecting
所述guanidinylating试剂的能力Ñ ',Ñ ''-diBoc- ñ -triflyl胍(GN-TF)与原位形成的游离胺在碳水化合物支架叠氮化物反应进行了探讨。该反应被证明是一种有效的方法,以一锅法方式制备具有良好或优异产率的胍衍生物,可以使用具有不同取代方式的伯或仲叠氮化物。在这些氢解条件下不除去不稳定的保护基,例如苄基醚。