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Letters 'D' or 'L' before the name of a ...

Letters 'D' or 'L' before the name of a stereoisomer of a compound indicate the correlation of configuration of that particular stereoisomer. This refers to their relation with one of the isomers of glyceraldehyde. Predict whether the given compound has 'D' or 'L' configuration.

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The stereoisomer has 'L' configuration because the relative position of H atom and OH group of configuration of lowest chiral carbon atom in the stereoisomer resembles with that of L-Glyceraldehyde.
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The letters 'D' or 'L' before the name of a stereoisomer of a compound indicate the correlation of configuration of that particular stereoisomer. This refers to their refers to their relation with one of the isomers of glyceraldehyde. Predict whether the following compound has 'D' or 'L' configuration.

Which of the following compound has 'D' configuration?

Which among the following compound has [L] configuration

Which of the following is different with refered to D, L-Configuration ?

From the electronic configuration of the given elements K,L, M and N, which one has the highest ionization potential?

Optical rotations of some compounds alongwith their structures are given below which of them have D configuration.

Specify the configuration of the following compounds in D or L designation. (a) Strategy: The sterochemicla descriptor D refers to an arrangement about a centre of chirality that is identical to the three-dimensional arrangement in D-(+)- glyceraldehyde in which the OH group on the chiral centre is on the right in the Fischer projection. Similarly, the other enatiomer of glyceraldehyde, which has _OH group on the chiral centre to the left is given L configuration. For carbohydrates (polyhdroxy aldehydes or ketones) the focus should be on the last chiral carbon (from the top) while for amino acids the focus should be on the chiral carbon carrying the NH_(2) group.

Optical rotations of some compounds along with their structures are given below. Which of them have D-configuration ?

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