The circled one is the Diastereomer which will give D-threose.
In addition to threose, eyrthose is also formed.
5. Demonstrate the Kiliani-Fischer procedure on the example of conversion of D- glyceraldehyde into D-threose. CHO...
The corresponding structure is: Glyceraldehyde is an aldose monosaccharide. The Fischer projection of D-glyceraldehyde is shown. HO o OH OH HCOH Hпин-Синон HOH CH2OH D-glyceraldehyde H2-OH HCOH O OLHO OH Translate the Fischer projection to show D-glyceraldehyde with wedge and dash bonds. Hi.... C OH HC-OH H₂Ē -oh HO-OH 8 9 RUOP
Drawings Instructor's approval of models L-glyceraldehyde Fischer: L-glyceraldehyde Fischer: D-glyceraldehyde H C Hico OH-c-H D-glyceraldehyde H-6-oh CH2OH CH2OH Fischer: L-glucose Fischer: D-glucose D-glucose Haworth: C-D-glucose Haworth: -D-glucose CE-D-glucose
Chapter 25: Reactions & Linkages Name: 1. If D-ribose underwent the Kiliani-Fischer synthesis (chain lengthening), what two new sugars would be produced. Draw the Fischer projections of the new sugars. CHO Н. OH Kiliani-Fischer H OH Synthesis H -OH CH2OH D-Ribose
5. Convert the following Fischer projection to a pyranose). CHO HOH но-н H- H НЕОН CH2OH acyclic pyranose scaffold a-pyranose Haworth
Glyceraldehyde is an aldose monosaccharide. The Fischer projection of D-glyceraldehyde is shown. Draw D-glyceraldehyde using wedge and dash bonds around the chirality center. Include all hydrogen atoms.
QUESTION 9 In the Fischer projection of Glyceraldehyde shown below, CHO - H-C-OH - CH2OH The molecule is in the D-form The molecule in the L-form The-CHO group is facing forward The H group is facing backward, QUESTION 10 In O-linked and N-linked transmembrane glycoproteins, The side chains of amino acids present on the outside of the membrane are glycosylated The back-bone-NH and Co groups of amino acids present on the inside of the membrane are glycosylated. The side chains...
10. Which Fischer projection corresponds with the following molecule? Br CHO CHO CHO СНО CHO OHHO- HOH HOB HO- - Br H Br Br Br CH.CH CH2CHE CH2CH3 CH2CH) CH2CHE III IV TIT II d. IV e. V b.
Catch Report Sheer - Lab 16 Date Neotion Instructor A. Al Monosaceharides Fischer projections L-glyceraldehyde D-glyceraldehyde How does L-glyceraldehyde differ from D-glyceraldehyde? A.2 Fischer projection of D-glucose Haworth (cyclic) formulas a-D-glucose B-D-glucose Haworth (cyclic) formula for a-D-fructose A.3 Fischer projection of D-fructose
CARBOHYDRATES POST-LAB QUESTIONS [52] 19. Review the Fischer structures of D-galactose, D-glucose, and D-mannose Identify each structure. [12 pts) CHO CHO CHO Н. -OH HO -H H -OH HO -H HO H HO -H Н. OH H OH HO -H H -OH H ОН Н. ОН CH2OH CH2OH CH2OH D-Glucose D-Mannose TD-Galactose 20. Would either D-galactose or D-mannose form an osazone identical to the glucose osazone? [5 pts] 21. Explain: [5 pts) [5 pts] 22. What structural feature do all...
3) a) Draw the Fischer projection of the following sugars and label them D or L. HO b) Draw the most stable chair conformation of the b-anomer of the hemiacetal of the following aldohexose: 3) a) Draw the Fischer projection of the following sugars and label them Dor L. НО. H CHO он НО H он Н. ОН НО. CHO ли нон н он b) Draw the most stable chair conformation of the B-anomer of the hemiacetal of the following...