Ketose-Aldose Isomerization...

[johnwandering]

The BR shows how Aldose can be converted to a Ketose

Just a quick question, can this occur the other way as well??

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[Rayhaan]

Yes, in basic solutions they can interconvert. This is why when you do a tollens test you get a positive for fructose, it converts from a ketone into an aldehyde.

 

[anisidi1985]

Do we need to know this for the MCAT? i can't find the topic on the topic list, but am wondering if it's hidden under another name. Thanks in advance!

 

[justadream]

To second anisidi's question, is anyone memorizing that mechanism?

 

[anisidi1985]

On the topic list, it says monosaccharide reactions, of which I'm guessing this is one, although it's not listed specifically...though I'm not totally sure. Could someone clarify? thanks!