Organic Chemistry Practice Problems Drawing Isomers with Functional Groups Practice Problems Solution: Propose a pair of stereoisomers with the molecular...

Solution: Propose a pair of stereoisomers with the molecular formula C 5H8O that BOTH contain a ketone. 

Problem

Propose a pair of stereoisomers with the molecular formula C 5H8O that BOTH contain a ketone.

 

Solution

We’re being asked to draw the structure for a pair of stereoisomers with the molecular formula C5H8O that are both ketones.


Recall that stereoisomers are isomers with the same molecular formula and structures but different spatial arrangements.


Also, recall that the general structure of ketones is:



Note that the IHD of a ketone is 1.


For this problem, we need to do the following steps:

Step 1: Determine the IHD of the formula.

Step 2: Propose stereoisomers.


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