4)4-Customized synthesis of carbohydrate compounds is a popular area of research. Complete the followingsteps, as required, from a recent report, which begins with a (D)-glucopyranose.ноHOPhPhHOOHAHOC.ÓCH3HOHOHOHO4.OHHOYHhosTHOCH3OCH34.4.NABH;CNHCI1 equivalentof TsCl /py1.CI-C.CIDMSOPhOH2) (CH3CH2);NPhOCH3(Swern reaction)4.4.NaN3NaBH4HO HƆstereoselective formationof an isomer ofcompound F4.

We have to draw following given reactions in a stepwise for (D)-glucopyranose as follows in step 2:

Answered: 4) 4- Customized synthesis of…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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5. Identify all hydrolytic products from the following. Ph cat. H3O* PhO, H20 1 OCH3
7) Which of the following structures represent D-glucose (Circle all that apply)? Но но HO OH Но D-glucose OH „OH НО HO OH НО HO "OH HO HO, HO НО HO, OH OH OH OH OH HO ОН H. H H Но. HO HO, НО о HO. H. HO. OH HO, OH ОН
CH2OH CH2OH .O. Но CH,OH -O H H. OH CH2OH OH CH2OH -O OH H OH OH OH но H он Sugars that contain aldehyde groups that are oxidised to carboxylic acids are classified as reducing sugars. Which of the following is TRUE about structure I and II? I and Il are non-reducing sugars T and II are reducing sugars I is a non-reducing sugar, Il is a reducing sugar I is a reducing sugar, II is a non-reducing sugar Which is NOT correctly paired? fibrous protein: spherical alpha helix protein: right-handed coil beta pleated sheet: fully extended peptide chain globular protein: soluble in water What will be the result if Structure III is subjected to Benedict's test? solution will change to red solution will change to purple silver mirror will form no change in color OH COOH но -H НО— но H- OH СООН HO, II II
rivatives: Nucleophilic Acyl Substitution Reactions - EOC O C-O [References] One step in the gluconeogenesis pathway for the biosynthesis of glucose is the partial reduction of 3-phosphoglycerate to give glyceraldehyde 3-phosphate. The process occurs by phosphorylation with ATP to give 1,3-bisphosphoglycerate, reaction with a thiol group on the enzyme to give an enzyme-bound thioester, and reduction with NADH. H-C-OH ATP ADP CH₂OPO32- 3-phosphoglycerate 0= OPO32- C H-C-OH CH₂OPO32 1,3-bisphosphoglycerate Enz-SH PO43- O= C S-Enz H-C-OH CH₂OPO3² (Enzyme-bound thioester) NADH/H+ O=C NAD*, Enz-SH H H-C-OH CH₂OPO3²- glyceraldehyde 3-phosphate Propose a structure for the first intermediate in the reaction of the enzyme-bound thioester with NADH to form glyceraldehyde 3-phosphate. To simplify the drawing process, substitute the structure below for the enzyme-bound thioester. S-CH3 substitute for the CH2CH3 enzyme-bound thioester You do not have to consider stereochemistry. • You do not have…
ACTIVITY-4. Refer to the structures below. Draw the Haworth formula (pyranose) -OH но H- FOH FOH- но но H- H FOH H FOH- H- CH2OH CH2OH Alpha-D- glucopyranose Beta-D-glucopyranose (Haworth) Beta-D-glucopyranose Alpha-D- glucopyranose (Haworth) ACTIVITY-5. Draw the Haworth formula for D-mannose and D-galactose. Label the alpha and beta anomer. CYCLIC FORMS OF FRUCTOSE D-fructose, a ketohexose sugar, can be presented using furanose and pyranose. Cyclic Fisher (furanose) 1 2OH Open chain Fisher Haworth formula (furanose) 1 CH2OH HOH,C- 1 2 F0 НО 3_H. ÇH2OH ÇH2OH но з—н 4 H- H но 2 H-4 HO- H- 5. OH 13 H-5 FOH 6 CH,OH 14 OH H. 6 CH2OH D-fructose Alpha form Alpha form Cyclic Fisher (pyranose) Haworth formula (pyranose) 1 HOH2C-2 3. 1 HO- CH2OH Но H. 5 он 2 H-4 HO- Но 4 OH 3 H-5 FHO- OH H-6 H Alpha form of D-fructose Alpha form of D-fructose ACTIVITY-6. Draw the Fisher and Haworth formula for beta-D-fructose (furanose and pyranose form). Label the beta furanose and beta pyranose.
CWhen the following triglyceride is hydrolyzed using a 2M solution of KOH, which of the following occurs? H₂C-(CH₂) H₂C- H₂C-(CH₂) O-CH₂ H H (CH₂)s Submit H ông CH (CH₂) H ₂0 (CH₂)7 - CHI Carboxylate ions and glycerol with fully deprotonated alcohol groups are formed. Carboxylic acids and glycerol are formed. Carboxylate lons and glycerol are formed. Carboxylic acids and glycerol with fully deprotonated alcohol groups are formed.
Which of the following is true for structure II? L-ketose D-ketose D-aldose L-aldose
Below is a structure of cellulose CH,OH HO- ОН НО- CH.OH 0 CH.OH ди CH₂OH ОН НО- ОН HO- ОН What is the type of anomer represented in cellulose structure shown?
Use your knowledge of condensation reactions to complete the following tasks. Protein: Draw a condensation reaction where a molecule of cysteine combines with a molecule of lysine, showing all reactants and products, and labeling a peptide linkage in your final product. Make sure the structures you draw include all hydrogens (leave every bond labeled and included in your drawing; don't use shorthand). Carbohydrate: Draw two ringed a-D glucose monomers forming a disaccharide (maltose). Make sure to label the glycosidic linkage formed.
Given the following sugars: If sugar D were to undergo Ruff degradation once, what would be the product? When reacted with HNO3, which sugar will form an optically inactive product?
13. Sophorose is a disaccharide component of sophorolipids, a class of glycolipids produced by yeast. The structure of sophorose is shown below. ОН ОН $ НО НО- -ОН -ОН ОН ОН a. On the structure above, circle and name the glycosidic bond in sophorose. b. Determine whether sophorose is a reducing sugar or not. Why or why not? What experiment could you do to test this?

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