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Question 14.1: Systematic Names of Alcohols Write the IUPAC name for each a...

Systematic Names of Alcohols

Write the IUPAC name for each alcohol.

Strategy

Follow the steps outlined above.

Step 1: Identify the parent chain.

Step 2: Change the ending of the parent alkane from -e to -ol, and use a number to show the location of the - OH group.

Step 3: Name and number substituents, and list them in alphabetical order.

Step 4: Specify configuration if cis-trans isomerism exists.

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(a) The parent alkane is pentane. Number the parent chain from the direction that gives the lower number to the carbon bearing the – OH group. This alcohol is 4-methyl-2-pentanol.

(b) The parent cycloalkane is cyclohexane. Number the atoms of the ring
beginning with the carbon bearing the iOH group as carbon 1 and specify that the methyl and hydroxyl groups are trans to each other. This alcohol is trans-2-methylcyclohexanol.

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