Why isn't sucrose a reducing sugar but maltose is? [duplicate]








**This question already has answers here**:
 
 




[Why is maltose a reducing sugar but not sucrose, even though they're both disaccharides?](/questions/63045/why-is-maltose-a-reducing-sugar-but-not-sucrose-even-though-theyre-both-disacc)

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Closed 6 years ago.



I read one of the answers for a similar question, According to that it is due to the hemiacetale group converting into a carbonyl group. I don't get why the same thing can't be applied to sucrose though.




if youre looking for a rather unsophisticated answer.....it would go as....for a pyranose ring to open up...it needs to have a hemiacetal group ...such a group is present in maltose and absent in sucrose...the same thing cant be applied to sucrose as it dosent have a hemi acetal group...please check the structure again...(needs a C-OH linked to the ether linkage that holds together both rings..i guess thats how it goes in simple terms...hopefully i answered your question


P.S:The link given in the answer above mine has a better detailed explanation


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