Anhydrosugars
2.4
287
⊡ Figure 11
Examples of the opening of the epoxides with nucleophiles under chelating and standard conditions
⊡ Scheme 19
used for the preparation of aminosugars (e. g. 55) ( > Scheme 19) [42]. Epoxidation reaction of
the double bond in monosaccharides (e. g. 56) is used mainly for the preparation of 2,3-anhydrosugars or saccharides with the exocyclic oxirane ring.
2.4
287
⊡ Figure 11
Examples of the opening of the epoxides with nucleophiles under chelating and standard conditions
⊡ Scheme 19
used for the preparation of aminosugars (e. g. 55) ( > Scheme 19) [42]. Epoxidation reaction of
the double bond in monosaccharides (e. g. 56) is used mainly for the preparation of 2,3-anhydrosugars or saccharides with the exocyclic oxirane ring.