Question

Draw the correct structure for (2S,3R)-2,3-diiodop

Draw the correct structure for (2S,3R)-2,3-diiodopentane. Show stereochemistry clearly. To ensure proper grading, explicity draw all four groups, including wedge/dash bonds, around a chirality center. Indicate whether the compound could exist in an optically active form.

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Concepts and reason

This problem is based on the concept of optical activity and chirality and structural determination of the compound by its name.

The structure of compound can be drawn with the help of its IUPAC name as IUPAC name involves all the groups along with their position within the compound. A compound is said to be optically active when it rotates the plane polarized light. An optically active compound contains chiral carbons. Thus, it is required for a molecule to have a chiral carbon in order to possess the phenomena of optical activity.

Fundamentals

In the structural determination of a compound, check each and every detail regarding the groups and their location numbers in the IUPAC name. A chiral carbon is the carbon having four completely different groups or substituents attached to it.

The name of compound is (2S,3R)-2,3-diiodopentane and its structure is given below:

Н
I.

The structures of the compound along with its absolute configuration followed by its name are given below:

н
(2S,3R)-2,3-diiodopentane
I.

Ans:

Structure of the given compound is,

Н
I.

The given compound,

could exist in optically active form
could not exist in optically active form
cannot be dteremined

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