Osazones are a class of carbohydrate derivatives found in organic chemistry formed when sugars are reacted with phenylhydrazine. The famous German chemist Emil Fischer developed and used the reaction to identify sugars whose stereochemistry differed by only one chiral carbon. The reaction involves formation of a pair of phenylhydrazone functionali...
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http://en.wikipedia.org/wiki/Osazone
The compound formed by certain sugars (e.g., glucose, galactose, fructose) with excess hydrazines, possessing two hydrazones on carbons 1 and 2 instead of only one at C-1, as in the ordinary hydrazone; osazone's formed with phenylhydrazine (phenylosazones) are used to characterise and identify certain sugars. ... Synonym: dihydrazone. ... (05 Mar 2...
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http://www.encyclo.co.uk/local/20973
Type: Term Pronunciation: ō′să-zōn Definitions: 1. The compound formed by certain sugars (glucose, galactose, fructose) with excess hydrazines, possessing two hydrazones on carbons 1 and 2 instead of only one at C-1, as in the ordinary hydrazone, thus, RNH—N=CR′—CR″=N—NHR″′; osazones formed with ph...
Found on
http://www.medilexicon.com/medicaldictionary.php?t=63600
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