Carb-29. Hemiacetals, Hemiketals, and Their Thio Analogues

2-Carb-29. Hemiacetals, hemiketals and their thio analogues 

The compounds obtained by transforming the carbonyl group of the acyclic form of a saccharide, or saccharide derivative, into the grouping  

In these compounds carbon atom number 1 has become chiral. When known, the stereochemistry at this new chiral centre is indicated using the R,S system ([13], Section E). 

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