3. Draw the Haworth projection of D-mannopyranose with a beta anomericconfiguration:CHOHO-HHO-HH--OHI-OHCH₂OH4. Draw a trisaccharide consisting of a central D-mannopyranose with two additionalmannopyranose residues linked to it: one o(1-6) and one (1-4):

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Answered: 3. Draw the Haworth projection of…

General, Organic, and Biological Chemistry

7th Edition

ISBN:9781285853918

Author:H. Stephen Stoker

Publisher:H. Stephen Stoker

Chapter18: Carbohydrates

Section: Chapter Questions

Problem 18.79EP

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1. Draw Haworth projections of B-D-arabinofuranose and a-L-mannopyranose. 2. Consider the structure of the disaccharide drawn at right: НО `CH2 В ОН (a) Give the names and D/L designation for the two monosaccharides linked together. H,C-O OHO „OH OH А: НО НО A В: ОН (b) In the structure, circle the anomeric carbon of each saccharide. (c) Is each saccharide present in its a or ß anomer? Specify both A and B (d) Would this disaccharide undergo mutarotation? Why or why not? (e) Would this disaccharide react with Tollens and/or Benedicts reagent? Why or why not? (f) There are two reasons this is very unlikely to be a naturally occurring disaccharide. What about its structure suggests this is true? Give both reasons.
The anticoagulant heparin is a polysaccharide that contains alternating residues of -D- glucuronic acid-6- sulfate and N-sulfo-D-glucosamine-6sulfate connected by (1 B 4)- glycosidic linkages. Draw a part of heparin that shows one each of the two residues.
The disaccharide α,β-trehalose differs from the α, β structure in Figure )by having an (α1→ β1) linkage. Draw its structure as a Haworth projection.
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 поч
atching an a 1,4 linkage a ẞ-1,4 linkage a nonreducing monosaccharide a reducing sugar a reducing disaccharide a deoxy sugar (A) (c) он CH₂OH (E) 1107 CHOH CHOH CH₂OH CH₂OH CHOH CH₂OH он On но- OF CHLOH HO Lot HO OH CH₂OH HO HOCH OH (F) OH (0)
Stachyose is an oligosaccharide found in high concentrations of beans. Stachyose is composed of alpha-D-galactopyranosyl-(1-6)-alpha-D-galactopyranosyl-(1-6)-alpha-D-glucopyranosyl-(1-2)beta-D- fructofuranose . Draw the structure of stachyose using Haworth projections.
2. Draw a Haworth structure for the B-pyranose form of the monosaccharide shown (Fischer projection) HC HO-C-H H-C-OH HO-C-H H-C-OH H2C-OH 3. Draw a Haworth structure for the a-furanose form of the monosaccharide shown (Fischer projection) H C-OH c=0 HO-C-H HO-C-H H-C-OH H₂C-OH
HO 15. (a) Identify the glycosidic bond in the following disaccharide. (b) Decide whether the compound is a non-reducing or reducing sugar. (c) Polysaccharide units are usually bonded together with a or 3 1, 6 or 1, 4 linkages. What linkage is used in the disaccharide shown below? (pis) но- HO HO H HO H HO CHO O 16. Draw the structure for 1,4-ß-D-galactopyranosyl-D-glucose. -OH -OH H но- 17. Assign an R/S designation to each chirality center in the following compound: ( CH₂OH HO O -OH
14․ Identify the following as an ? or ? form and draw the Haworth structure of the other anomer. 15․ Below are the Fischer projections of monosaccharides.
Answer each of the following questions with proper explanation! I will give you like for sure .
4. What is the polysaccharide that contains glucose units with a(1- 4) glycosidic bonds and branches a(16) glycosidic bonds every 12 units? 5. What is the polysaccharide that contains glucose units with only a(1→4) glycosidic bonds?
7. Draw the Haworth structure for the following monosaccharides a. H НО H c=0 H + но - н 3 4 Н 5 - ОН - OH 애 CH₂OH 6 D-Mannose b. H 0 = с H - C - OH HO-C - H H - C - OH H - C - ОН CH₂OH Glucose

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3. Draw the Haworth projection of D-mannopyranose with a beta anomeric configuration: CHO HO -H HO -H H- -OH I -OH CH₂OH 4. Draw a trisaccharide consisting of a central D-mannopyranose with two additional mannopyranose residues linked to it: one o(1-6) and one (1-4):