Concept explainers
a)
Interpretation:
The number of stereoisomers that are possible for ketoheptose is to be stated.
Concept Introduction:
Stereoisomers are the isomers having same molecular formula but they differ in the arrangement of molecules in space. Enantiomers are the molecules that are non-superimposable on one another.
The number of possible stereoisomers is calculated as
b)
Interpretation:
The number of stereoisomers that are possible for aldoheptose is to be stated.
Concept Introduction:
Stereoisomers are the isomers having same molecular formula but they differ from the arrangement of molecules in the space. Enantiomers are the molecules that are non-superimposable on one another.
The number of possible stereoisomers is calculated as
c)
Interpretation:
The number of stereoisomers that are possible for a ketotriose is to be stated.
Concept Introduction:
Stereoisomers are the isomers having same molecular formula but they differ from the arrangement of molecules in the space. Enantiomers are the molecules that are non-superimposable on one another.
The number of possible stereoisomers is calculated as
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EBK ORGANIC CHEMISTRY
- 1. Draw the two possible Haworth structures (both alpha and beta anomers) for the following monosaccharides and give their corresponding systematic names. [Show the stepwise process] A. D-Galactosearrow_forwardBe sure to answer all parts. Consider the disaccharide sophorose. 7 OH OH 1 CH₂OH 0 sophorose 0. 3 ОН Н ОН 15 ОН What monosaccharides are formed when sophorose is hydrolyzed? . . draw structure ... Upper Saccharide H 10 н -I0-I 12 CH2OH IO-I Н OH Н О 00 I 6 Н Iarrow_forwardUnder basic conditions, fructose will give a positive Benedict's test. Does this mean that fructose is a reducing sugar? A. No B. Yes C. Inconclusivearrow_forward
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- Draw a diastereomers of D- Glucosearrow_forwarda) Draw Haworth projections of both - and -anomers of D-fructose. Indicate which carbon is the anomeric carbon.b) Sucrose is a disaccharide made up of a molecule of D-fructose and D-glucose. Draw the structure of sucrose clearly indicating the linkage between the two monosaccharides and its biological significance.c) Tollen’s reagent is a very mild oxidizing agent which normally oxidize aldehydes but not ketones. However, both glucose and fructose give positive results with Tollen’s reagent and are classified as reducing sugars. Explain how fructose can also give positive results with Tollen’s reagent (illustrate using structures).arrow_forward3) Give an example of: a. A compound with 2 or more stereocenters that is superimposable on its mirror image. b. A pair of compounds that are chiral but are non-superimposable and non-mirror images. c. A pair of compounds with 2 or more stereocenters that are non-superimposable and mirror images.arrow_forward
- Illustrate (hand-drawn) the mechanism of intrahemiacetal or intrahemiketal formation in the following monosaccharides and identify/draw the possible products of these reactions. A. D-talose B. D-fructosearrow_forwardBe sure to answer all parts. [1] classify the compound as a D or L monosaccharide; [2] draw the the enantiomer of the compound. [1] L [2] O draw structure... H H- OH -OH CH₂OHarrow_forwardMonosaccharide Structure and Stereochemistry For D-arabinose: Draw its enantiomer.arrow_forward
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