Organic Chemistry (6th Edition)
6th Edition
ISBN: 9781260119107
Author: Janice Gorzynski Smith
Publisher: McGraw Hill Education
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Chapter 26.13, Problem 33P
Interpretation Introduction
Interpretation: The stepwise mechanism for the conversion of
Concept introduction: Glucose is a monosaccharide. It is made by the plants during the process of photosynthesis The molecular formula of glucose is
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Chapter 26 Solutions
Organic Chemistry (6th Edition)
Ch. 26.2 - Prob. 1PCh. 26.2 - Prob. 2PCh. 26.2 - Label each stereogenic center as R or S. a. b. c....Ch. 26.2 - Convert the ball-and-stick model to a Fischer...Ch. 26.2 - Prob. 5PCh. 26.2 - Prob. 6PCh. 26.3 - Prob. 7PCh. 26.3 - Prob. 8PCh. 26.4 - Prob. 9PCh. 26.4 - Prob. 10P
Ch. 26.6 - Prob. 11PCh. 26.6 - Prob. 12PCh. 26.6 - Prob. 13PCh. 26.6 - Prob. 14PCh. 26.6 - Prob. 15PCh. 26.7 - Prob. 16PCh. 26.7 - Draw a stepwise mechanism for the following...Ch. 26.7 - Prob. 18PCh. 26.8 - Prob. 19PCh. 26.9 - Prob. 20PCh. 26.9 - Prob. 21PCh. 26.9 - Draw the products formed when D-arabinose is...Ch. 26.9 - Prob. 23PCh. 26.10 - Prob. 24PCh. 26.10 - Prob. 25PCh. 26.10 - Prob. 26PCh. 26.10 - Prob. 27PCh. 26.11 - Prob. 28PCh. 26.11 - Prob. 29PCh. 26.12 - Prob. 30PCh. 26.12 - Prob. 31PCh. 26.13 - Prob. 32PCh. 26.13 - Prob. 33PCh. 26.13 - Problem-28.35
Draw the structures of the...Ch. 26.13 - Prob. 35PCh. 26 - 28.37 Convert each ball-and-stick model to a...Ch. 26 - Prob. 37PCh. 26 - Prob. 38PCh. 26 - 28.40 Convert each compound to a Fischer...Ch. 26 - Prob. 40PCh. 26 - Prob. 41PCh. 26 - 28.43 Draw a Haworth projection for each compound...Ch. 26 - Prob. 43PCh. 26 - 28.45 Draw both pyranose anomers of each...Ch. 26 - Prob. 45PCh. 26 - 28.50 Draw the products formed when D-altrose is...Ch. 26 - 28.58 Draw a stepwise mechanism for the following...Ch. 26 - Prob. 62PCh. 26 - Prob. 63PCh. 26 - Prob. 64PCh. 26 - Prob. 65PCh. 26 - Prob. 66PCh. 26 - Prob. 67PCh. 26 - Prob. 68PCh. 26 - Prob. 69PCh. 26 - Prob. 70P
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- (d) Draw the structure of the expected product when monosaccharide B undergo mutarotation upon dissolving in water in the presence of Tollens reagent (AGNO3, NHẠOH). он OH O. OH OH OH monosaccharide Barrow_forwardA D-aldopentose A is reduced to an optically active alditol. Upon Kiliani–Fischer synthesis, A is converted to two D-aldohexoses, B and C. B is oxidized to an optically inactive aldaric acid. C is oxidized to an optically active aldaric acid. What are the structures of A–C?arrow_forward14) Which of the following descriptions apply to both dihydroxyacetone and D-fructofuranose? I. They are both ketoses. II. They are both aldoses. III. They are enatiomers of each other. IV. They are diastereomers of each other. V. They are epimers of each other. A) I B) II C) I and III D) II and IV E) II, IV and Varrow_forward
- 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.arrow_forwardThe following isomerization reaction, drawn using D-glucose as starting material, occurs with all aldohexoses in the presence of base. Draw a stepwise mechanism that illustrates how each compound is formed.arrow_forwardHow many chiral centers are in B-d-glucopyranose and a-D-galactopyranose? How many stereoisomers of these two aldohexoses can theoretically be drawn?arrow_forward
- (a) Which of the d-aldopentoses will give optically active aldaric acids on oxidation with HNO3 ?(b) Which of the d-aldotetroses will give optically active aldaric acids on oxidation with HNO3 ?(c) Sugar X is known to be a d-aldohexose. On oxidation with HNO3, X gives an optically inactive aldaric acid. WhenX is degraded to an aldopentose, oxidation of the aldopentose gives an optically active aldaric acid. Determine thestructure of X.(d) Even though sugar X gives an optically inactive aldaric acid, the pentose formed by degradation gives an opticallyactive aldaric acid. Does this finding contradict the principle that optically inactive reagents cannot form opticallyactive products?(e) Show what product results if the aldopentose formed from degradation of X is further degraded to an aldotetrose.Does HNO3 oxidize this aldotetrose to an optically active aldaric acid?arrow_forwardI) Draw a proper Fischer projection for the following molecule. Assign each stereogenic carbon as either (R) or (S) and determine if the molecule is either a (D) or (L)-sugar, is this aldose or ketose? ОН он он ОНarrow_forwardDraw (in Haworth projection) and name the cyclization products (all isomers) of L-Glucosearrow_forward
- What aldoses are formed when the following aldoses are subjected to the Kiliani–Fischer synthesis: (a) d-threose; (b) dribose; (c) D-galactose?arrow_forwardThe 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.arrow_forward5-Deoxyglucose will close to a?arrow_forward
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