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alpha-glucose is oxidized by HIO(4) more...

`alpha`-glucose is oxidized by `HIO_(4)` more rapidly than its `beta`-anomer at the 1-2 bond.

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`alpha`-glucopyranose is cis-1, 2-diol and the B-anomer is the trans 1, 2 diol. Since the former can form a cyclic ester with periodic acid and latter can not, the former is oxidised more rapidly than the latter.
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