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Concept explainers
(a)
Interpretation: The alcohol required to produce the given compound by the reaction of the alcohol with the appropriate monosaccharide has to be predicted.
Concept introduction: The reaction between a monosaccharide that has cyclic forms (hemiacetal forms) and an alcohol results in the formation of an acetal. This type of reaction can be used to prepare a disaccharide.
(b)
Interpretation: The alcohol required to produce the given compound by the reaction of the alcohol with the appropriate monosaccharide has to be predicted.
Concept introduction: The reaction between a monosaccharide that has cyclic forms (hemiacetal forms) and an alcohol results in the formation of an acetal. This type of reaction can be used to prepare a disaccharide.
(c)
Interpretation: The alcohol required to produce the given compound by the reaction of the alcohol with the appropriate monosaccharide has to be predicted.
Concept introduction: The reaction between a monosaccharide that has cyclic forms (hemiacetal forms) and an alcohol results in the formation of an acetal. This type of reaction can be used to prepare a disaccharide.
(d)
Interpretation: The alcohol required to produce the given compound by the reaction of the alcohol with the appropriate monosaccharide has to be predicted.
Concept introduction: The reaction between a monosaccharide that has cyclic forms (hemiacetal forms) and an alcohol results in the formation of an acetal. This type of reaction can be used to prepare a disaccharide.
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Chapter 18 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Following are Fischer projections for a group of five-carbon sugars, all of which are aldopentoses. Identify the pairs that are enantiomers and the pairs that are epimers. (The sugars shown here are not all of the possible five-carbon sugars.) 1 СНО 2 СНО СНО Н-С—ОН Н-С—ОН Н—С—ОН Н-С—ОН НО —С—Н Н-С—ОН Н- С—ОН НО—С— Н НО—С—Н CH̟OH CH̟OH ČH̟OH в iоchemistry |61 STATE ATION Republic of the Philippines Romblon State University Romblan, Philippines 4 СНО 5 СНО 6 СНО НО—С—Н Н-С—ОН НО -С—Н Н—С—ОН НО -С—Н НО -С—Н H-C–OH Н-С—ОН НО—С—Н CH,OH ČH,OH CH,OHarrow_forwardWhat is the complete name of the following sugar? но он носн он Write out the words alpha and beta. This question is case-sensitive. Capitalize only the configuration designation, D or L, example: beta-D-glucopyranose.arrow_forwardFollowing are Fischer projections for a group of five-carbon sugars, all of which are aldopentoses. Identify the pairs that are enantiomers and the pairs that are epimers. (The sugars shown here are not all of the possible five-carbon )arrow_forward
- Following are Fischer projections for a group of five-carbon sugars, all of which are aldopentoses. Identify the pairs that are enantiomers. CHO сно H-C- OH H-C-OH H-C- OH но-с — н н-с—он но- ČHOH ČH,OH сно CHO Н-с—он но—с— н H-C- OH H-C-OH но—с—н Н-с—он ČHOH ČH,OH сно сно н-с—он но—с —н но—с— н но -с — н H-C- OH но- C-H ČH,OH ČH,OHarrow_forwardFollowing are Fischer projection for a group of five carbon sugars,all of which are aldopentoses. Identify the pairs that are enantiomers and the pairs that are epimers.(The sugar shown herebare not all of the possible five carbon sugars.)arrow_forwardFollowing are Fischer projections for a groupof five-carbon sugars, all of which are aldopentoses. Identify thepairs that are enantiomers and the pairs that are epimers. (Thesugars shown here are not all of the possible five-carbon sugars.)arrow_forward
- Draw the predominant form of Gly-Gly when 2.0 moles of OH is added.arrow_forward(a) (S)-2-chlorobutane, draw a three-dimensional representation.arrow_forwardThis is remdesivir, one of the drugs being used in the treatment of COVID-19. Label the indicated carbons as R, S, or neither. b); NH2 HO OHarrow_forward
- Trehalose, a disaccharide found in the blood of insects, has the following structure. What simple sugars would you obtain on hydrolysis of trehalose?arrow_forwardThe following carbohydrate tests have been performed on each of the following sugar standard solutions. Indicate which of the sugar standards will give a positive (+) or negative (-) reaction for each of the following tests. Answer by entering either a plus (+) or negative (-) sign in each cell of the table below. Fehling Benedict Barfoed Bial lodine Seliwanoff Xylose Glucose Fructose Sucrosearrow_forwardIf Taxol (see Problem ) has a specific rotation of -49°, then what is the specific rotation of its enantiomer?arrow_forward
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