Derivatives with Sulphur in the Sugar Ring

Reagents i, MeONa-MeOH ii, CHj=C(Me)OMe-HCl Hi, LiAlH iv, BnBr-NaH-DMSO V, 80% AcOH vi, TsCl-py vii, AcSK-DMF viii, Na-NH, ix, MeOH-H+ 

The acetalation of l,6-anhydro-l(6)-thio-D-glucitol with acetone, formaldehyde, or benzaldehyde to give 2,3 4,5-diacetals has been noted in Chapter 5.  

No reports have appeared during the past year of derivatives of sugars containing nitrogen or phosphorus in a five- or six-membered ring. 

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