Concept explainers
a)
Interpretation:
A sugar that is
Concept Introduction:
Epimers are the monosaccharides which differ in the structure at only one of the asymmetric center and they are particular kind of stereoisomers that are not enantiomers. For example,
b)
Interpretation:
A sugar that is
Concept Introduction:
Epimers are the monosaccharides which differ in the structure at only one of the asymmetric center and they are particular kind of stereoisomers that are not enantiomers. For example,
c)
Interpretation:
A sugar that is
Concept Introduction:
Epimers are the monosaccharides which differ in the structure at only one of the asymmetric center and they are particular kind of stereoisomers that are not enantiomers. For example,
d)
Interpretation:
A sugar that is
Concept Introduction:
Epimers are the monosaccharides which differ in the structure at only one of the asymmetric center and they are particular kind of stereoisomers that are not enantiomers. For example,
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Organic Chemistry (8th Edition)
- a. Draw the enantiomer of D-fructose.b. Draw an epimer of D-fructose at C4. What is the name of this compound?c. Draw an epimer of D-fructose at C5. What is the name of this compound?arrow_forward5-Deoxyglucose will close to a?arrow_forwardWhich one is b-D glucose and which one is a-L glucose ? 2. Which one is b-fructose and which a-L fructose?arrow_forward
- On the basis of the results from Benedict’s test, which sugars are reducing? nonreducing?arrow_forwardFor D-arabinose:a. Draw its enantiomer.b. Draw an epimer at C3.c. Draw a diastereomer that is not an epimer.d. Draw a constitutional isomer that still contains a carbonyl group.arrow_forwardWhat is the configuration of each of the asymmetric centers in the Fischer projection of a. D-glucose? b. D-galactose? c. D-ribose? d.D-xylose? e.D-sorbose?arrow_forward
- For D-lyxose i. Draw an epimer at C3. ii. Draw a diastereomer that is not an epimer. iii. Draw the anomers of -D-lyxofuranose and -D-lyxopyranose. iv. Draw the product as Haworth projection when reacted with methanol catalysed by acid.arrow_forward(a) Label compounds A, B, and C as D- or L-sugars. (b) How are compounds A and B related? A and C? B and C? Choose from enantiomers, diastereomers, or constitutional isomers.arrow_forwardDraw the C4 “epimer” of d-xylose. Notice that this “epimer” is actually an l-seriessugar, and we have seen its enantiomer. Give the correct name for this l-series sugararrow_forward
- Draw the following monosaccharides, using chair conformations for the pyranoses andHaworth projections for the furanoses.(a) a-d-mannopyranose (C2 epimer of glucose)(b) b-d-galactopyranose (C4 epimer of glucose)(c) b-d-allopyranose (C3 epimer of glucose)(d) a-d-arabinofuranose(e) b-d-ribofuranose (C2 epimer of arabinose)arrow_forwardWithout referring to the chapter, draw the chair conformations of(a) b-d-mannopyranose (the C2 epimer of glucose).(b) a-d-allopyranose (the C3 epimer of glucose).(c) b-d-galactopyranose (the C4 epimer of glucose)arrow_forwardCircle the correct answer in each sentence. Projection 1 is a (boat ; fischer ; haworth ; sawhorse) projection. Projection 2 is a (boat ; fischer ; haworth ; sawhorse) projection. This sugar is a (pentose ; hexose) and is a (aldose ; ketose). It is classified as a (simple ; complex) carbohydrate. This is the (L- ; D-) enantiomer of this sugar.arrow_forward
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