Anhydro Derivatives of Alditols

Anhydro derivatives of alditols.- A four-step synthesis of 2,5 3,6-dianhydro-l-deoxy-D-glucitol (15) has been described, starting from 

5-amino analogues (16) and (17) in standard steps. The hexenitol (18) prepared from ribonolactone can be cyclized under electro- 

5-Anhydrocellobiitol (20) has been used as a model for investigating the oxidative degradation of cellulose promoted by iron. Oxidation of either sugar unit occurs (at C-5 or C-3 respectively) with 

A new method of D-glucan analysis involves reductive cleavage of permethylated compounds with triethylsilane and trimethylsilyl triflate or boron trifluoride-etherate as catalyst, followed by acetylation, which yields a series of acetylated, methylated 1,5-anhydro-glucitols. A number of isomeric substituted 1,5-anhydro-glucitols were synthesized as references. /3-Glycosyl- 

The reduction of glycosyl isoselenocyanates to 1,5-anhydro-hexitols is mentioned in Chapter 10. 

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