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Complete the following reactions: (a)....

Complete the following reactions:
(a). `OCH-(CHOH)_(4)CH_(2)Ohunderset(5HIO_(4))(rarr)`
(b). `HOCH_(2)-overset(O)overset(||)(C )-(CHOH)_(3)-CH_(2)Ohoverset(5HIO_(4))(rarr)`
(c ).`O=HC-underset(O)underset(||)(C)-underset(("Onsone"))((CHOH)_(3)CH_(2)OH)overset(zn//ACOH)(rarr)`

Text Solution

Verified by Experts

(a)
(b)
(c ) The more reactive `CHO` group of osone is reduced, not the less reactive keto group, and gives `2`-ketohexose. This method is used for the conversion of glucose to fructose.
`"Osone" overset(Zn//ACOH)(rarr)HOCH_(2)-underset(O_("Ketohexose"))underset(||)(C )-(CHOH)_(3)CH_(2)OH`
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