Concept explainers
Interpretation:
The Fischer projection formulas for the given compounds, using given data are to be written.
Concept Introduction:
▸ Oxidation of aldoses by nitric acid produces optically inactive aldaric acids. This is due to the formation of meso compounds. Compounds that do not form meso structures are optically active.
▸ The Fischer projection is a way of representing
▸ The Ruff degradation reaction is used for decreasing the number of carbon atoms of the respective aldoses, thereby, shortening the carbon chain of the compound. It works in two steps: 1) Using bromine water to oxidize an aldose to the respective aldonic acid and, 2) using
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Organic Chemistry, 12e Study Guide/Student Solutions Manual
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- Which of the following statements is not true about glucose? (i) It is an aldohexose. (ii) On heating with HI it forms n-hexanearrow_forwardRegarding 4-O- (α-D-psychofuranosyl) -β-D-allopyranose. Please indicate the RIGHT alternative: (a) The disaccharide reacts with CH3OH in an acid medium to form a glycoside that cannot be oxidized with HNO3. (b) It is a reducing disaccharide only in basic medium. (c) In the structure there is only one glycosidic bond that is of the type β 1-O-4 ' (d) The hydrolysis products of this disaccharide do not show mutarrotation. (e) The disaccharide structure contains two six-membered rings.arrow_forwardLike glucose, galactose mutarotates when it dissolves in water. The specific rotation ofa-d-galactopyranose is +150.7°, and that of the b anomer is +52.8°. When either ofthe pure anomers dissolves in water, the specific rotation gradually changes to +80.2°.Determine the percentages of the two anomers present at equilibrium.arrow_forward
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