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What are the structures for furanose and pyranose forms of d-ribose?

Allison Kosters  Follow

The molecular structure of β-d-ribose in its pyranose form (a) and β-d-ribose in its furanose form (b). The carbon atoms 1C and 5C are signified in both the pyranose and furanose forms.

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Dean Moncaster  Follow

It has been known for over 40 years that in solution, ribose exists as a mixure of four different structures: α- and ß-furanoses as well as α- and the dominant ß-pyranose. Pyranoses are a form of sugar in which the five carbon atoms and an oxygen atom form a six-membered ring.

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