3. (a) i. a) ii. CH3 H. CH3 H H3C b) (b) H H. H3C back carbon- H CH₂CH₂CH3 H CH3 Convert each of the above Newman projections into a solid/dashed wedge representation of the specific conformer. Use the given template where the front and back carbons must be converted as marked. One hydrogen atom has been drawn as a reference. Make sure you put a hydrogen atom or alkyl group at the end of each of the remaining bonds in the template. CH3 CH₂CH3 H. XX front carbon c) (c) H H3C CH₂CH3 HPH CH3 H XX Convert each Newman projection to a line structure similar to the one shown in #2. Draw the longest straight chain of carbon atoms in a 'zigzag' form horizontally. You do not need to show solid/dashed wedges for the substituents on the parent chain. (a) Line structure (b) Line structure (c) Line structure
Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of the α- and β- glucose anomers upon its dissolution in the solvent water. This process is usually seen in the chemistry of carbohydrates.
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotating the polarized light’s plane in the direction anticlockwise. L isomers are one of the 2 isomers formed by the configurational stereochemistry of the carbohydrates.
The convert a Newman projection to solid/dashed wedge, first we have to check the substituents that are present on left side of the Newman projection and that on the right side.
In newman projection formulas the group that is left is marked as that is away from us, which is denoted with a dashed wedge. In newman projection formulas the groups on the right are considered to be pointing towards us, which is denoted by a solid wedge.
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