Concept explainers
(a)
Interpretation: The enantiomer of D-fructose is to be drawn.
Concept introduction: A sugar molecule in which hydroxyl group of second last carbon atom is on the left and right side of the horizontal line is known as
(b)
Interpretation: An epimer of D-fructose at
Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.
(c)
Interpretation: An epimer of D-fructose at
Concept introduction: Two compounds which are neither superimposable nor mirror images to each other and the configuration of one of their stereogenic centers is different are known as epimers.
Want to see the full answer?
Check out a sample textbook solutionChapter 26 Solutions
ORG CHEM CONNECT CARD
- m) Which pyranose ring (A, B, C, or D) in the tetrasaccharide below is derived from D-altrose? The Fischer projections for the four aldohexoses that make up this tetrasaccharide are shown below. B C D HOH CHO CHO CHO CHO HO+H HTOH Fонно н HOH HOH H-OH H-OH H-+-OH H-TOHHOH HOH H+OH HOHнтон нон CHOH CHOH CHOH CHOH De D-glue Dalose Datrone i NH Į HOH STEP 1 OH, HO- answer 1. Just add arrows and charges for steps 1, 2, and 3 in formation of this enamine з no arrows needed here OH н Н ЮН -OH STEP 3 :ÖH н H STEP 2 на это про за почarrow_forwardPsicose is the C3 epimer of fructose. Draw a Fischer projection of L-psicose. Q4. Draw a chair conformation of L-psicopyranose. Q5. Draw and provide names for the two possible anomers of the furanose form of D-ribulose. CH,OH -HO- -OH ČHHOH D-ribulosearrow_forwardGive typed answer not writtenarrow_forward
- Draw the product formed when each monosaccharide is oxidized with Benedict’s reagent.arrow_forward9 A disaccharide consists of the molecules of D-glucose and D-glucosamine joined by a (1a, 1b)-glucosidic bond. a) Draw the structure of the disaccharide (Haworth projection) if you know that in D- glucose the anomeric carbon has an a-configuration. b) Give the name of the union you drew in question a. c) Draw the structure of the product (cantilever conformation) resulting from the effect of excess acetic anhydride and pyridine on the disaccharide. Hint: D-glucosamine has the same structure as D-glucose, but C-2 has an amino group instead of a hydroxyl.arrow_forward5-Deoxyglucose will close to a?arrow_forward
- Answer the following questions about monosaccharide B.a. Draw the β anomer of B in a Haworth projection.b. Draw the α anomer of B in a three-dimensional representation using a chair conformation.c. What products are formed when B undergoes the Kiliani–Fischer synthesis?d. What product is formed when B is treated with NaBH4 in CH3OH?e. Draw the disaccharide formed when two molecules of B are joined by a 1→4-β-glycosidic linkage.arrow_forwardA Fischer projection of a monosaccharide is shown below: Classify this monosaccharide (e.g., aldotriose) Does it have the D or L configuration? Which carbon and oxygen become bonded in the furanose ring form of this monosaccharide (e.g., C2O6, where O6 means the oxygen on carbon 6, or "not formed")? Which carbon and oxygen become bonded in the pyranose ring form of this monosaccharide e.g., C2O6 or "not formed"?arrow_forwardusing the picture as a reference do the following: a.) draw the Haworth projection of β-D-Mannose b.) draw the disaccharide formed from two β-D-Mannose molecules with a β-1 → 4 glycosidic bondarrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,