Chemistry 2223B Lecture Notes - Fucose, Cellobiose, Aldohexose

• School: Western University
• Department: Chemistry
• Course: Chemistry 2223B
• Professor: James Wisner

Document Summary

Based on the names, which one of the following does not have an aldehyde: idose, tagose, fucose, sedoheptulose, cellobiose. Which formula correctly represents a simple monosaccharide: c5h5o5, c5h5o10, c4h8o4, c6h10o6, c4h12o6. How many hexoses (aldohexoses and 2-ketohexoses) are possible: 8, 12, 16, 24, 46. What is a correct name for the compound shown below: 2,5-dideoxy-2-n-acetylamino-5-amino-l-idose, 2-n-acetylamino-5-amino-l-mannose, 2,5-dideoxy-2-n-acetylamino-5-amino-l-gulose, 2,5-dideoxy-2-n-acetylamino-5-amino-l-mannose, 2-n-acetylamino-5-amino-l-gulose. In the antibiotic neomycin, shown below, from what sugar is ring i derived: -4-deoxy-4-amino-d-mannose, -4-deoxy-4-amino-l-idose, -2-deoxy-2-amino-d-glucose, -4-deoxy-4-amino-l-mannose, -2-deoxy-2-amino-l-glucose. Peonin (shown below) is a red pigment found in the petals of peony flowers. Carbohydrates | 8: which one of the following would show mutarotation when dissolved in water? a) Oh: consider the equilibrium shown below; the optical rotation values are given for each of the cyclic molecules. A student dissolved -d-galactose in acid, placed the solution in a sealed tube, and then monitored the optical activity of the solution in a polarimeter over time.