D-Mannose and D-fructose are related via two keto-enol tautomerisms. Draw the structure of the common intermediate. • Draw your Fischer projection without using wedged or hashed bonds. Align the Fischer projection vertically, e.g. H -OH H- он H- он HO. Show explicitly the bonds to any hydrogens attached to chiral carbons. Do not show bonds to other hydrogens. A start structure for you to modify is provided in the sketcher.

Q: There are four d-aldopentoses (Table 25.1). If each is reduced with NaBH4, which yield optically…

A: The four aldopentoses are D-Ribose, D-Arabinose, D-Xylose and D-Lyxose. When these aldopentoses are…

Q: 2) Part 1: Draw D-glucose in its proper Fischer Projection (using the template below). Part 2: Draw…

A: Given

Q: CH2OH H- HO- НО H- -ОН CH2OH D-Sorbose

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Write the Haworth and conformational formulas for anomeric sugars. Explain the relative stabilities…

A: The Haworth conformation for the anomeric sugars are needed to be provided. The relative stability…

Q: What is the configuration of each of the asymmetric centers in the Fischer projection ofa.…

A: If carbon is bonded with four different substituents, then that center is called a chiral center or…

Q: Draw Fischer projections for the two D-aldohexoses whose stereochemistry and CS is the same as that…

A: Carbohydrates are the component of food. They are also called sugars. Aldohexoses are the…

Q: Without referring to the chapter, draw the chair conformations of(a) b-d-mannopyranose (the C2…

A: Chair confirmation is the most stable confirmation of cyclohexane. The chair confirmations of each…

Q: B-pyranose: 4-epimer of D-fructose a-furanose: L-lyxose d-pyranose: 5-epimer of D-altrose

A: Epimers are the diastereomers that differ in configuration only at one chiral centre.

Q: Draw the Fischer projections of the four aldotetroses. Draw the D-sugar on the left and its L-isomer…

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Q: Convert the following Haworth projection to the acyclic form of the aldohexose.

A: Carbohydrates are biomolecules which are composed of certain monomer units, called as…

Q: 6. The Fischer projection for fructose is shown below. Is it a D-sugar or an L-sugar? a. It is a…

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Q: What sugar is the C-5 epimer of d-allose?

A: Epimers are a pair of diastereomeric molecules that have opposite configurations at only one of the…

Q: What monosaccharides are formed in the Kiliani-Fischer synthesis starting with D-xylose? HCFO H--OH…

A: -> Kiliani-fischer synthesis involves addition of cyanide ion to an open chain aldehyde which…

Q: What sugar is the C−3 epimer of L-sorbose?

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Q: Circle the correct answer in each sentence. Projection 1 is a (boat ; fischer ; haworth ; sawhorse)…

A: Given are two sugar molecules and both are monosaccharide.

Q: Which aldotetrose is the structure shown? Is it d-erythrose, d-threose, l-erythrose, or l-threose?…

A: The given Fischer projection can be sketched on paper as follows:

Q: Given the Fisher projection

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Q: a) Ketotetrose. b) Ketopentose. c) Aldopentose. d) Aldotetrose. e) Aldohexose. f) None of the above

A: In this question, we will see the class of this given carbohydrate sketch. You can see details…

Q: Draw the C4 “epimer” of d-xylose. Notice that this “epimer” is actually an l-seriessugar, and we…

A: Xylose is a sugar that is comprised of 5 carbons and it is a monosaccharide. Epimers are a pair of…

Q: What is the configuration of each of the asymmetric centers in the Fischer projection of a.…

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Q: What other monosaccharide is reduced only to the alditol obtained from the reduction of 1. d-talose?…

A: Monosaccharides are reduced by reducing agent like NaBH4 and forms two alditols (aldehyde group or…

Q: CH,OH A. Circle the anomeric sugar on the left OH B. Circle the carbon that makes the given sugar…

A: Anomers are cyclic monosaccharides which differ in configuration on one carbon, mostly C-1 in case…

Q: Mannose is an aldohexose with relative stereochemistry AABB. i) Draw the Fischer projection of…

A: Fischer projection is the representation of the organic molecule in two-dimensional form whereas…

Q: Convert attached aldohexose to the indicated anomer using a Haworth projection.

A: Given aldohexose is

Q: 6 CH2OH OH 1 2 OH 3 OH (c) Trace and identify the acetal in the above monosaccharide. (d) Draw the…

A: Given is monosaccharide.

Q: (d) Draw the structure of the expected product when monosaccharide A undergo mutarotation upon…

A: When given monosaccharide reacts with water, it forms open chain structure. All the up OH groups…

Q: Answer the following questions about the eight aldopentoses: a. Which are enantiomers? b. Which are…

A: a.  The aldopentoses are eight in number which consists of D and L form of ribose, arabinose, xylose…

Q: (a) Is the following stereoisomer of a D or L sugar? (b) In the box provided, draw the enantiomer of…

A: In the Fischer projection of any sugar, The most oxidized atom stays at top as here is CHO group.…

Q: 8. (a). In the box below draw out the structure of a-D-Glucopyranose-(12)-ß-D-Mannopyranose-…

A: Here we have to write the structure of given trisaccharide and to predict whether it is reducing…

Q: Draw the chair confirmation of: (a) B-D-mannopyranose (the C2 epimer of glucose) (b)…

A: Pyranose is a 6 membered chain with 5 carbon atoms and one oxygen atom.

Q: -0-glucose 12 B-D-glucose 13

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Q: d) Draw the structure of the expected product when monosaccharide C undergo mutarotation upon…

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Q: 2. The open-chain form of fructose exists in equilibrium with several different hemiketals. Which of…

A: Open chain form of fructose exists in equilibrium with several different hemiketal.

Q: On the templates, draw a Haworth projection of the a-isomer and B-isomer of the sugar shown. (b)…

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Q: CHOVHOSIT H -ОН Н -ОН C. OH ОН CH2OH 3. H_LOH -Н -Н -H CH₂OH НО- НО- НО- Altrose Allose Mannose II.…

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Q: Draw and label the C4 epimer of the compound below. Draw the cyclic form of this sugar

A: In simple words, epimer represents a pair of diastereoisomers. Only one stereogenic centre two…

Q: D-Talose differs from D-Glucose at carbons 2 and 4. ( A. Draw D-Talose on the Fischer template…

A: The open and pyranose structures of D-Talose is as follows;

Q: 2. The open-chain form of fructose exists in equilibrium with several different hemiketals. Which of…

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Q: Convert attached aldohexose to the indicated anomer using a Haworth projection.

A: Carbohydrates are the component of food. They are also called sugars. Aldohexoses are the…

Q: Convert the following Haworth projection to the acyclic form of thealdohexose.

A: Haworth projection is the pyranose form that is the cyclic form. To convert the Haworth projection…

Q: How many d-aldoheptoses are possible? Draw the Fischer projection of one of them and its enantiomer.

A: When the monosaccharide unit has seven carbon atoms, it is termed as heptose. When the heptose has…

Q: CH-OH он OH OH OH H In the box below, draw the open-chain structure (as a Fischer projection)…

A: We have to convert the Haworth projection to the Fischer projection of the cyclic hemiacetal.

Q: Draw the two possible Haworth structures for each the following sugars in their cyclized form. Be…

A: Here we have to write the Haworth structures of anomers formed from the cyclisation ( hemiacetal )…

Q: Mannose exists in aqueous solution as a mixture of a-d-mannopyranose and b-d-mannopyranose. Draw…

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Q: How many different aldoheptoses are there? How many are D-sugars? Draw all D-aldoheptoses having the…

A: Aldoheptose is defined as a sugar containing 7 carbon atoms out of which 5 carbon atoms are chiral…

Q: What products are obtained from the reduction of a. d-idose? b. d-sorbose?

A: The structure of D-idose is as: The reduction of D-idose gives

Q: Two sugars differing in configuration at a single asymmetric carbon atom are known as epimers.…

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Q: What sugar is the C-3 epimer of d-xylose? . What sugar is the C-5 epimer of d-allose? What sugar is…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…