Concept explainers
(a)
Interpretation:
A sugar that is
Concept Introduction:
Epimer: Epimer is one of a pair of stereoisomers. 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:
Epimer: Epimer is one of a pair of stereoisomers. 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:
Epimer: Epimer is one of a pair of stereoisomers. 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:
Epimer: Epimer is one of a pair of stereoisomers. 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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Essential Organic Chemistry (3rd Edition)
- (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_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_forwardLabel each Haworth projection as an α or β anomer and convert the Haworth projection to a sixmembered ring with wedges and dashed wedges.arrow_forward
- Which one is b-D glucose and which one is a-L glucose ? 2. Which one is b-fructose and which a-L fructose?arrow_forwardDraw 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_forwardLocate the stereogenic centers in the attached Newman projection and labeleach center as R or S.arrow_forward
- On the basis of the results from Benedict’s test, which sugars are reducing? nonreducing?arrow_forwardFor 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_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
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning