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Topic: why is that sucrose is a non reducing suger  (Read 2700 times)

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Offline megarushan

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why is that sucrose is a non reducing suger
« on: January 15, 2015, 12:55:08 PM »


sucrose doesn't have free anomeric c .it is ok..but it have hydroxyl group..why is that hydroxyl group can't oxidize..

Offline kriggy

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Re: why is that sucrose is a non reducing suger
« Reply #1 on: January 15, 2015, 01:04:36 PM »
Because it cant be easily reduced. If you reduce OH group, then you are left with CH3. THis reaction is not that easy

Offline megarushan

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Re: why is that sucrose is a non reducing suger
« Reply #2 on: January 15, 2015, 02:18:11 PM »
Because it cant be easily reduced. If you reduce OH group, then you are left with CH3. THis reaction is not that easy
yes it can't be easily reduce , but i think it can be easily oxidize to carboxyl group...
my question is why sucrose (hydroxyl group) cant be oxidize by benedict reagent..

Offline Babcock_Hall

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Re: why is that sucrose is a non reducing suger
« Reply #3 on: January 15, 2015, 03:30:43 PM »
@OP, Your first post mentioned something about the anomeric position, which is worth keeping in mind.  Let's do this step-by-step.  What functional groups are oxidized in typical monosaccharides, such as glucose or fructose?  Hydroxyl groups do not oxidize under these conditions (or sucrose would react).

@Kriggy, It is because sucrose cannot be easily oxidized, but other sugars can be.
« Last Edit: January 15, 2015, 06:55:25 PM by Babcock_Hall »

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