C. Li et al., TETRAMETHYLGUANIDINIUM AZIDE AS A NEW REAGENT FOR THE STEREOSELECTIVESYNTHESIS OF GLYCOSYL AZIDES, Tetrahedron letters, 34(22), 1993, pp. 3535-3538
Tetramethylguanidinium azide was used in the quantitative conversion o
f glycosyl halides 1 - 6 to the corresponding glycosyl azides 7 - 12.
The stereoselective reactions occurred with complete inversion at the
anomeric centers.