Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 25.SE, Problem 61AP
Interpretation Introduction
Interpretation:
Trehalose is a sugar consisting of two molecules of glucose. Its otherwise called mycose or tremalose. The structure of trehalose is shown below.
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Name the two monosaccharide units of which trehalose is composed
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In addition to lactose, D-galactose and D-glucose can form different heterodisaccharides. Draw the structures (Haworth projections) of the (i) a-glucose-(1→1) -a-galactose and ii) a- glucose-(1→3)-?-galactose, two examples of heterodisaccharides that can form.
Chapter 25 Solutions
Organic Chemistry
Ch. 25.1 - Prob. 1PCh. 25.2 - Prob. 2PCh. 25.2 - Prob. 3PCh. 25.2 - Prob. 4PCh. 25.2 - Prob. 5PCh. 25.3 - Prob. 6PCh. 25.3 - Prob. 7PCh. 25.4 - Prob. 8PCh. 25.4 - Prob. 9PCh. 25.4 - Prob. 10P
Ch. 25.5 - Prob. 11PCh. 25.5 - Prob. 12PCh. 25.5 - Prob. 13PCh. 25.5 - Prob. 14PCh. 25.5 - Prob. 15PCh. 25.6 - Prob. 16PCh. 25.6 - Prob. 17PCh. 25.6 - Prob. 18PCh. 25.6 - Prob. 19PCh. 25.6 - Prob. 20PCh. 25.6 - Prob. 21PCh. 25.6 - Prob. 22PCh. 25.6 - Prob. 23PCh. 25.7 - Prob. 24PCh. 25.8 - Show the product you would obtain from the...Ch. 25.SE - Prob. 26VCCh. 25.SE - Prob. 27VCCh. 25.SE - Prob. 28VCCh. 25.SE - Prob. 29VCCh. 25.SE - Prob. 30MPCh. 25.SE - Prob. 31MPCh. 25.SE - Glucosamine, one of the eight essential...Ch. 25.SE - D-Glicose reacts with acetone in the presence of...Ch. 25.SE - Prob. 34MPCh. 25.SE - Prob. 35MPCh. 25.SE - Prob. 36APCh. 25.SE - Prob. 37APCh. 25.SE - Prob. 38APCh. 25.SE - Prob. 39APCh. 25.SE - Prob. 40APCh. 25.SE - Assign R or S configuration to each chirality...Ch. 25.SE - Prob. 42APCh. 25.SE - Prob. 43APCh. 25.SE - Prob. 44APCh. 25.SE - Prob. 45APCh. 25.SE - Prob. 46APCh. 25.SE - Prob. 47APCh. 25.SE - Prob. 48APCh. 25.SE - Prob. 49APCh. 25.SE - Prob. 50APCh. 25.SE - Prob. 51APCh. 25.SE - Prob. 52APCh. 25.SE - Prob. 53APCh. 25.SE - Prob. 54APCh. 25.SE - Prob. 55APCh. 25.SE - Prob. 56APCh. 25.SE - Prob. 57APCh. 25.SE - Prob. 58APCh. 25.SE - Prob. 59APCh. 25.SE - Prob. 60APCh. 25.SE - Prob. 61APCh. 25.SE - Prob. 62APCh. 25.SE - Prob. 63APCh. 25.SE - D-Mannose reacts with acetone to give a...Ch. 25.SE - Prob. 65APCh. 25.SE - Prob. 66APCh. 25.SE - Prob. 67APCh. 25.SE - Prob. 68APCh. 25.SE - Prob. 69APCh. 25.SE - Prob. 70APCh. 25.SE - Prob. 71AP
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- (g) Using appropriate prefixes/infixes/suffixes (ketohentese, aldahentase, etc.), classify each of the monosaccharides shown below. СНО CH2OH O: HOI но ОН OH HO H. CH2OH CH2OH I II (h) Identify B-D-altrose and oa-D-altrose from the monosaccharides shown below. CH2OH CH2OH CH2OH CH2OH O. ОН OH OH OH OH OH ОН OH OH OH ОН OH OH OH OH OH I II III IV | (i) Identify B-D-altrose and oa-D-altrose from the monosaccharides shown below. VI I CH2OH CH2OH II V OH III ОН IV H OH Harrow_forwardLactose contains what number of anomeric carbons and what number of glycosidic bonds: CH2OH ОН CH2OH ОН OH OH OHarrow_forward4. An iterative approach to oligosaccharide synthesis involves the use of protected glycals (sugars with C1-C2 double bond) as shown below. The product from the reaction of the first glycal with DMDO under anhydrous conditions is treated with another suitably-protected glycal to form a disaccharide glycal, and the process can be repeated to form a trisaccharide glycal, and so on... Crucial to the success of this approach is the stereoselective formation of the intermediate A in the scheme below. Draw the structure of A. DMDO CH₂Cl2 A OH ZnCl₂, THF OHarrow_forward
- Xylulose has the following structural formula. To what carbohydrate class does xylulose belong based on the number of carbons and carbonyl functionality? A) aldotetrose B) aldopentose C) ketotetrose D) ketopentose E) ketohexosearrow_forwardWhich of the following statements about the monosaccharide shown below is correct?arrow_forwardGlycosaminoglycans (GAGs) are heteropolysaccharides composed of repeating disaccharide units. These units have some similar characteristics that allow them to be identified as GAGS. Which of the structures are examples of glycosaminoglycans? А. C. E. HO HO COO™ H Н ОН Н CH₂OH H H H OH OH Н CH₂OH Н OH H ОН o,so H H Н CH₂OH H H ОН H CH₂OSO H NH C=0 CH, H H Н NH c=0 CH3 H CH,OH OH Н ОН OH H B. D. Н НО H ОН H CH₂OH H ОН Н СОО ОН Н Н H H OSoz H Н OH б H CH₂OH ОН CH₂OSO H ОН H Н OSO, H Н NHSO,arrow_forward
- Disaccharides Disaccharides are carbohydrates composed of two monosaccharide units that are joined by a carbon-oxygen-carbon linkage known as a glycosidic linkage. Circle the disaccharide linkage in each of these disaccharides below. OH glucose OH HO HO OH HO HO HO но OH HO- HO OH OHO- HO OH HO glucose OH OH glucose OH OH OH glucose galactose -OH OH fructose maltose lactose sucrose There are different types of glycosidic linkages. They are characterized by the numbering of the alcohols that are linked in the ether. And the anomer of the sugar. For the maltose shown here, the sugars are [a/ẞ] anomers. Circle one. • Which alcohols are linked? Numbering proceeds around the ring starting with the anomeric carbon. OH HO HO HO 6 4 5 OH OHO- glucose 3 OH OH glucose Thus, this is alpha-1,4-maltose. Draw ẞ-1,4-maltose, where the glucose on the right has isomerized. 3 5 60arrow_forwardConsider the following compound, which is used by insects and some fungi to store energy:arrow_forwardSuppose you have two simple sugars, D-arabinose and L-tagatose. Both sugars cyclize and form a non-reducing disaccharide with the glycosidic bond oriented in the alpha position relative to each monosaccharide's structure. Give the full biochemical name for this disaccharide.arrow_forward
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