Questions: Provide an IUPAC name for the structure shown. (Use cis/trans terms for cyclic structures. Do not specify stereochemistry in other cases. It is not necessary to use italics in writing compound names.)

Provide an IUPAC name for the structure shown. (Use cis/trans terms for cyclic structures. Do not specify stereochemistry in other cases. It is not necessary to use italics in writing compound names.)

Transcript text: Provide an IUPAC name for the structure shown. (Use cis/trans terms for cyclic structures. Do not specify stereochemistry in other cases. It is not necessary to use italics in writing compound names.)

Solution

Solution Steps

Step 1: Identify the longest carbon chain

The longest continuous carbon chain contains four carbons. This gives us the parent name butane.

Step 2: Identify the substituents and their positions

An alcohol functional group (-OH) is present. Number the carbon atoms in the longest chain such that the -OH group gets the lowest possible number. In this case, numbering from the left makes the -OH group located at carbon 1. Hence, we get butan-1-ol.

Step 3: Account for the ethyl group

There is an ethyl group (-CH2CH3) attached to the third carbon. Combining everything gives us 3-ethylbutan-1-ol.