Concept explainers
a)
Interpretation:
Fischer projection of D-sugars are to be drawn.
Concept introduction:
Fischer Projections are typically used for depicting monosaccharides and amino acids. They are helpful with depicting monosaccharides, because they have so many stereocenters, and the different monosaccharides are all pretty similar, they are just different about the orientation of the stereocenters. The Fischer Projection allows us to quickly see the orientation of each monosaccharide.
b)
Interpretation:
Fischer projection of D-sugars are to be drawn.
Concept introduction:
Fischer Projections are typically used for depicting monosaccharides and amino acids. They are helpful with depicting monosaccharides, because they have so many stereocenters, and the different monosaccharides are all pretty similar, they are just different about the orientation of the stereocenters. The Fischer Projection allows us to quickly see the orientation of each monosaccharide.
c)
Interpretation:
Fischer projection of D-sugars are to be drawn.
Concept introduction:
Fischer Projections are typically used for depicting monosaccharides and amino acids. They are helpful with depicting monosaccharides, because they have so many stereocenters, and the different monosaccharides are all pretty similar, they are just different about the orientation of the stereocenters. The Fischer Projection allows us to quickly see the orientation of each monosaccharide.
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Check out a sample textbook solutionChapter 25 Solutions
Organic Chemistry
- .. Draw Haworth projections for the following: (a) CHO in a-furanose form. Name the sugar. H-C- OH но-с—н H-C-OH CH,OH (b) The L isomer of (a) (c) a-D-GlcNAc (d) (d) a-D-Fructofuranosearrow_forward6 сH-он (5 4 OH 1 2 ОН 3 OH (c) Trace and identify the acetal in the above monosaccharide. (d) Draw the hemiacetal that results from above acetal. (e) Draw the open chain equivalent of the sugar in part (d).arrow_forward23-58 Predict Hhe poducts obtained when D-fruitose reacts with each reagent. x) No BHy (Y) Ag(NiHa), OH- (2) excess Ch,I, Ag20arrow_forward
- Draw the Haworth or Chair Haworth structures of the following disaccharides: (a) α-D-glucopyranosyl-(1,4)-β, D-galactopyranose (b) β,D-galactopyranosyl-(1,4)-α-D-glucopyranose (c) β-D-glucopyranosyl-(1,4)-α,D-galactopyranose. Identify all anomeric carbons and hemiacetal, acetal, hemiketal, and ketal linkages.arrow_forwardatching an a 1,4 linkage a ẞ-1,4 linkage a nonreducing monosaccharide a reducing sugar a reducing disaccharide a deoxy sugar (A) (c) он CH₂OH (E) 1107 CHOH CHOH CH₂OH CH₂OH CHOH CH₂OH он On но- OF CHLOH HO Lot HO OH CH₂OH HO HOCH OH (F) OH (0)arrow_forwardDraw the Haworth projection for B-D-xylose The Products of the reaction of L-glucose with the following L-glucose [1] NH2NH4 [2] Ac2O,NaOAc [3] N2OCH3 Products of the reaction of D-threose with the following D-threose [1]NACN, HCI [2] H2, Pd-Baso, [3] H3O*arrow_forward
- An oligosaccharide isolated from an organism is found tocontain two glucose residues and one galactose residue.Exhaustive methylation followed by hydrolysis producedtwo glucoses with methoxy groups at positions 2, 3,and 6 and galactose with methoxy groups at positions2, 3, 4, and 6. What is the structure of the originaloligosaccharide?arrow_forwardsugar is an epimer of D-mannose? only one chiral different a) D-galactose b) D-allose c) D-talose d) L-mannose This sugar is (use structures from 6) OH OH HO OH OH H a) a-(D)-mannopyranose b) ẞ-(D)-mannopyranose c) B-(D)-galactopyranose d) B-(D)-talopyranose d) a-(D)-allopyranosearrow_forward2. Provide the Haworth projection for α-(D)-idopyranosyl-(1,1)-ẞ-(D)-glucofuranose (the Fischer projection for idose is provided below). HO -H H- -OH HO -H H -OH CH₂OH (D)-idosearrow_forward
- Draw Haworth projections for the following: (b) The L isomer of (a)(c) α-D-GlcNAc(d) α-D-Fructofuranosearrow_forwardPredict the products obtained when d-galactose reacts with each reagent. (c) CH3OH, H + (d) Ag(NH3) 2+ -OH(e) H2, Niarrow_forward1. In the space provided, draw a Haworth projection for the alpha anomer of the following monosaccharide Fischer projection. H но CHO OH -H H- OH H- FOH CH₂OHarrow_forward