Other Approaches to 2-Deoxyglycosides

All the approaches which have been described so far involved glycosylation reactions, that is to say the creation of an exocyclic C-1-0 bond on the pyranose ring 

However, it should be also possible to construct a 2-deoxy-glycoside by formation of the endocyclic C-1-0 bond from an acyclic sugar, or the C-l-H-1 bond from an anomeric radical. 

---