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Understanding D-Hexoses: Key Sugars and Their Configurations

This guide explores the generation of D-hexoses, focusing on specific sugars such as D-glyceraldehyde, D-erythrose, and D-threose. It highlights the configurations of these compounds, noting how the hydroxyl (OH) group at carbon 2 (C2) shifts depending on the compound's orientation. Mnemonics like "ET…phonehome" and "RAXL" help in remembering the sugar names, while the list includes D-arabinose, D-xylose, D-lyxose, D-ribose, D-allose, D-altrose, D-glucose, D-mannose, D-idose, D-galactose, D-talose, and D-gulose.

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Understanding D-Hexoses: Key Sugars and Their Configurations

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  1. Generating the D-hexoses D-glyceraldehyde

  2. When the new compound is on the left the new OH (at C2)goes to the right

  3. When the new compound is on the right the new OH (at C2)goes to the left D-erythrose D-threose Remember ET, as in “ET…phone home….”

  4. Similarly…. D-arabinose D-xylose D-lyxose D-ribose Remember RAXL, say it out loud…..

  5. Finally…. D-Allose D-Altrose D-Glucose D-Mannose D-Idose D-Galactose D-Talose D-Gulose All altruists gladly make gum in gallon tanks.

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