Textbook Question
Draw the condensed structural formula, or line-angle formula if cyclic, for each of the following: (12.1)
b. methyl propyl ether
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14. Compounds with Oxygen or Sulfur
Naming Ethers
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What is the IUPAC name of isobutyl propyl ether?
A
2-methyl-1-propoxypropane
B
2-methyl-1-propanepropoxy
C
3-methyl-1-propoxybutane
D
2-dimethyl-1-propoxyethane
Verified step by step guidance1
Identify the structure of isobutyl propyl ether. Isobutyl refers to a branched four-carbon group, and propyl refers to a straight three-carbon group. The ether linkage connects these two groups.
Determine the longest carbon chain that includes the ether oxygen. In this case, the longest chain is the propyl group (three carbons) attached to the oxygen.
Identify the substituent group attached to the oxygen. The isobutyl group is a substituent, which is a branched chain with a methyl group on the second carbon.
Name the ether using the IUPAC naming convention. The alkoxy group (the smaller group attached to the oxygen) is named first, followed by the name of the longest carbon chain. The isobutyl group is named as 2-methylpropyl.
Combine the names to form the IUPAC name: 2-methyl-1-propoxypropane. This indicates a methyl group on the second carbon of the propyl chain, with the ether linkage at the first carbon.
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