Concept explainers
(a)
Interpretation:
The compound pairs should be classified as either enantiomers or diastereomers.
Concept Introduction:
Stereo isomers are molecules with same molecular formula, same molecular formula and different arrangement of atoms in space and they can be divided into two groups, enantiomers and diastereomers. Enantiomers are isomers which are mirror images of each other. Diastereomers are isomers which are not mirror images of each other.
(b)
Interpretation:
Constitutional isomer of molecule A should be drawn.
Concept Introduction:
In constitutional isomers molecular formula can be similar, but the
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- The oligosaccharide shown below is the repeating disaccharide found in dermatan sulfate, a biological glycosaminoglycan found throughout the body. a) Is ring A a D- or an L-sugar? How do you know based on the Haworth structure of ring A below? b) Is the ring Ba glucose derivative? How do you know based on the Haworth structure of ring B below? c) Describe the linkage between the monosaccharide moleties ring A to ring B. (See slides 9-10 of the Fischer Haworth PowerPoint presentation) 0,so CH,OH O OR coo NHCOCH, OH óso,arrow_forward(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_forwardm) 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_forward
- A Fischer projection of a monosaccharide is shown below: CH₂OH C=O H НО HO -OH H H CH₂OH a. Classify this monosaccharide (e.g., aldotriose) b. Does it have the D or L configuration? c. Which carbon and oxygen become bonded in the furanose ring form of this monosaccharide (e.g., C206, where 06 means the oxygen on carbon 6, or "not formed")? d. Which carbon and oxygen become bonded in the pyranose ring form of this monosaccharide e.g., C206 or "not formed"?arrow_forwardOH ОН Which monosaccharide has a greater heat of combustion, B-D-glucopyranose or B-D-allopyranose? Explain. но НО Но OH OH OH OH OH B-D-Glucopyranose B-D-Allopyranosearrow_forward4 Draw a chair conformation for a β anomer of a disaccharide in which the two units of D-glucopyranose are joined by an α-1,6-glycosidic bond.arrow_forward
- 1. Which of the following is not true to the monosaccharide below? H. ОН но- -H- но ОН ĆH2OH O It is the Fischer Projection of D-glucose. It is an aldohexose having 4 chiral centers and 24 stereoisomers. It is has a D-glucose because OH- group bonded to the highest numbered chiral C is pointing to the right. It is a polyhydroxy ketone having 8 enantiomeric pair.arrow_forward#6 B D F INSTRUCTIONS: Characterize the members of each of the following pairs of structures as enantiomers, diastereomers or neither enantiomers nor diastereomers.arrow_forwardA Fischer projection of a monosaccharide is shown below: H CH₂OH -OH H H HO C=O -OH -OH -H CH₂OH a. Classify this monosaccharide (e.g., aldotriose) b. Does it have the D or L configuration? c. Which carbon and oxygen become bonded in the furanose ring form of this monosaccharide (e.g., C206, where 06 means the oxygen on carbon 6, or "not formed")? d. Which carbon and oxygen become bonded in the pyranose ring form of this monosaccharide e.g., C206 or "not formed"?arrow_forward
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- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning