Questions: Question 7 (10 points) What is the IUPAC name of this molecule?

Question 7 (10 points) What is the IUPAC name of this molecule?
Transcript text: Question 7 (10 points) What is the IUPAC name of this molecule?
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Solution

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Solution Steps

Step 1: Identify the parent chain

The longest carbon chain containing the highest-priority functional group (thiol) has four carbons, making the parent chain butane. The thiol group takes priority over the hydroxy group, so we number the chain starting from the sulfur. The suffix will be -thiol since thiol is the highest priority group.

Step 2: Identify and number the substituents

There is a hydroxy group on carbon 3 and a substituted phenyl ring at carbon 2. The substituents on the phenyl ring are an ethoxy group at carbon 3 and a methylthiomethyl group at carbon 5. Numbering of the phenyl ring starts at the point of attachment to the butane chain.

Step 3: Assemble the name

Combining all the substituents and the parent chain, and ordering them alphabetically, we obtain the IUPAC name.

Final Answer:

2-(3-Ethoxy-5-(methylthiomethyl)phenyl)-3-hydroxybutane-1-thiol

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