Concept explainers
(a)
Interpretation:
Fischer projection for D-galactose has to be drawn.
Concept Introduction:
Fischer projection formula simply uses cross for representing tetrahedral carbon atom. The carbon atom that is present in the intersection point in cross. The horizontal bonds means they are coming forward and they are present on wedge bond. The vertical bonds means they are pointing away and they are present on dashed lines.
(b)
Interpretation:
Fischer projection for the enantiomer of D-galactose has to be drawn.
Concept Introduction:
Enantiomers are two stereoisomers of a compound that rotate the plane polarized light exactly opposite. The configuration present in the enantiomers will be exactly opposite to each other.
Fischer projection formula simply uses cross for representing tetrahedral carbon atom. The carbon atom that is present in the intersection point in cross. The horizontal bonds means they are coming forward and they are present on wedge bond. The vertical bonds means they are pointing away and they are present on dashed lines.
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Principles of General, Organic, Biological Chemistry
- a). The Fischer projection of D-Galactose is given below. Draw Haworthprojections for the a and b anomers (both cyclic hemiacetals) of D-Galactose.arrow_forwardDraw a chair conformation for the b-anomer of a disaccharide in which two units of d-glucopyranose are joined by an a-1,6-glycosidic bond.arrow_forwardDraw a chair conformation for the a form of a disaccharide in which two units of d-glucopyranose are joined by a b-1,3-glycosidic bond.arrow_forward
- 1 Draw D- glucose in a Fischer Projection. 2 Draw alpha-D- glucose and in the Hayworth (ring ) structure. 3 Draw the hydrolysis of maltose- the disaccharide composed of alpha D glucose molecules. 4 What is the chemical difference between cellulose and amylose NOTE- please dont explain too much explain to the pointarrow_forwardDraw a Fischer of D-glucose and convert to Newman and wedge-dash in eclipsed and staggered conformation. Assign R, S to the Fischer chiral carbons.arrow_forwardHow is each compound related to the simple sugar D-erythrose? Is it an enantiomer, a diastereomer, or an identical molecule?arrow_forward
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