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A new procedure for the C1-C2 fragmentation of cyclic carbohydrates, t
hrough the formation of anomeric alkoxy radicals from the correspondin
g nitrate esters, with (Bu3SnH)-Bu-n/azobisisobutyronitrile (AIBN), af
fords acyclic alditols in good yields. (C) 1998 Elsevier Science Ltd.
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