Organic Chemistry 354 Quiz - December 1, 1999
Dr. Sundin
- 1. Optically active aldopentose A was strongly oxidized with
nitric acid to give optically active diacid B. Degradation of
A gave optically active aldotetrose C. Degradation of
C gave L-glyceraldehyde. Nitric acid oxidation of C gave
optically active diacid D. Give Fischer projections of A,
B, C, D, and D-glyceraldehyde.
Answer
- 2. Encircle the acetal functional group(s) and draw a square around
the hemiacetal functional group(s).
Answer
- 3. Consider the following disaccharide.
-
- a. Is this "disaccharide" a reducing sugar?
Answer
- b. Is the "hexose" portion of this "disaccharide" an aldose or ketose?
Answer
- c. Is the "pentose" portion of this "disaccharide" an aldose or ketose?
Answer
- d. Is either the "pentose" or the "hexose" portion of this
"disaccharide" a deoxy monosaccharide?
Answer
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