Q40E

Question

What are the stereochemical configurations of the two diastereomers of (2S,4R)-2,4-octanediol? (A diol is a compound with two -OH groups.)

Step-by-Step Solution

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Answer

1Step-by-Step Solution Step 1: Diastereomers

Diastereomers are the “non-superimposable” and “non-mirror” image compounds, e.g., all geometrical isomers

They are separated with the help of “fractional distillation and crystallization” methods.

2Step 2: Stereochemical configuration of Diastereomers

The diastereomers of (2S,4R)-2,4-octane diol are the pair of stereoisomers that are the non-mirror image of each other, and their overall configuration is not the same nor completely different.

The diastereomers of (2S,4R)-2,4-octane diol have the same configuration at one chiral center and a different configuration at another chiral center.

The Stereochemical configuration of diastereomers of (2S,4R)-2,4-octane diol is shown as follows:

Stereochemical configuration of diastereomers

Q39E

Q41 E

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Q39E

What is the stereochemical configuration of the enantiomer of (2S,4R)-2,4-octanediol? (A diol is a compound with two -OH groups.)

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Q41 E

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Q43 E-a

Assign R or S configurations to the chirality centers in the following molecules:a.b.c.

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