Thank You.
8. Use the image to answer the questions that follow HO-CH HO-CH2 HO-CH2 CHO H₂o OH CHO CHO OCH CHOICH CH-OH CHCc C...
CHO H-C-OH H-C-OH H-C-OH CH, OH CHO 1 H-C-OH HO-c-H H-C-OH H-C-OH CH, OH CHO H-C-OH HO-C-H HO-º-H H-C-OH CH,OH CH,OH CEO HO-C-H H-C-OH H-C-OH CH,OH D A B с Which of the sugars in the figure above is an ketopentose? C B None of the choices are correct. D A
CHO 1. NH2OH 2. Ac2o 3. CH,O CHO OH H- HO H HO H HCN H OH OH H- OH H- -OH H- CH2OH CH2OH The Wohl degradation is a series of reactions that shorten an aldose chain by one carbon, it is almost the exact opposite of the Kiliani In this reaction the aldose aldehyde carbonyl group is converted into a nitrile. The resulting cyanohydrin loses HCN under basic cone Conversion of the aldehyde to a nitrile is accomplished...
4. For each sugar below, characterize the anomer if a monosaccharide or the glycosidic bond(s) if a di- or polysaccharide (e.g., B,B-2,3; if there is more than one glycosidic bond, draw an arrow from each label to its corresponding bond). CH,OH CH2OH CH OН но н H Н H Он Н OH н OH Он Н ОН O H Но он b. a. OH H OH CH-OH O H Но ОН Н CH2OH CH2 CH2OH он OCH CH3 Но н...
anyone know how to do this? please help if so:) 29. Statements: (1) Cellulose and amylose are glucose polymers which differ in the type of glycosidic linkage present (2) All monosaccharides are either aldoses and ketoses. (3) Enantiomers can never be epimers. a) all three statements are true b) two of the three statements are true c) only one of the statements is true d) none of the statements is true For each of the stereochemical descriptions select from the...
3. (2 pts) Use the Fischer projections shown below to answer the following questions. Reference Sugar a) Which sugar is an epimer of the reference sugar? он ньон Нонн -он -он CH OH b) Which sugar is an enantiomer of the reference sugar? c) Name the reference sugar shown. 1) 2) 5) СОН сон он 9 1 HOH HO- нон } I I но- н нон нон нон CH OH Нон нон нон нон CH OH 5 + } н...
Please show all work. Will rate high! Use the Henderson–Hasselbalch (H-H) equation to answer the following question: Calculate the concentration of the glutamine anion when 0.50 M of glutamine is at a physiological pH of 7.4. The pka of the a-amine group is 9.13. (Answer in mm) Match the name with the structure for each of the D-aldoses. CHO CHO но CHO H он H Но H H ОН H он HOH H он CHO но -Н H ОН но...
I need the mechanism for this Fischer Esterification CH3 Reaction CH3 H+ CH3-C-OH HO-CH2-CH2-CH-CHCHz-C-O-CH2-CH2-CH-CHaH20 Name Acetic acid Isopentyl alcoho H2SO Isopentyl acetatewater
F19 .1 H.CH Erjon HO--- -OH a. 1 6.2 c.3 4.4 24. Which of the following compounds is the enantiome SHO "g compounds is the enantiomer of the structure shown below? HOTH CH₂OH 4. CHO нон ном но-Еннон b. сно с. CH, OH сно 4 сно нон н- он OHH OH CH OHH .CH CH,OH 25. The following two monosaccha howing two monosaccharides form a disaccharide by forming a bond between the two carbons indicated with an asterisk (*). What...
draw fisher projections for both the D and L isomers of the following 12 Identify each of the following as a D or an L form and draw the structural formula of the enantiomer: CHO b. a. CH,OH C=O он HOH HOH но CH,OH CH,OH 3 Draw Fischer projections for both the D and L isomers of the following a. 2,3-dihydroxypropanoic acid b. 2-chloro-3-hydroxypropanoic acid Draw Fischer projections for both the D and L somers of the following amino acids:...
30. Which of the choices below is the enantiomer of D-glucose? сно сно нон HO-EH сно на-он D-glucose Іно-Ен н -он но-Ен EH,OH сно но н-он но -н нон Сн,он но-Ен на-он но -н но-Ен н -он нон CHO но -н н-он но-Ен нон снен CHOH Сн,он 3. Which of the following structures is an a-anomer? Сн,он —о, он o ноноон нонс осн он — о оно сн, он он онон он он он он тон КСн,он y CH, OH...