Textbook Question
Draw the correct structure from the following IUPAC names:
(e) (R)-2,2-dimethyl-1-phenylpropane-1-thiol
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12. Alcohols, Ethers, Epoxides and Thiols
Naming Ethers
1:58 minutesProblem 22a(3,4)
Textbook Question
What is each ether’s systematic name?
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Verified step by step guidance1
Step 1: Identify the longest carbon chain in the molecule that contains the ether functional group (R-O-R). This chain will serve as the parent chain for naming the compound.
Step 2: Determine the substituents attached to the parent chain. For ethers, the alkoxy group (-O-R) is treated as a substituent, and its name is derived from the alkyl group attached to the oxygen atom.
Step 3: Number the parent chain starting from the end closest to the ether functional group to ensure the lowest possible locant for the substituent.
Step 4: Assign locants to all substituents and list them in alphabetical order in the systematic name. Use prefixes like 'methoxy-' or 'ethoxy-' for the alkoxy group, and include other substituents such as methyl groups.
Step 5: Combine the locants, substituent names, and parent chain name into the full systematic name, ensuring proper punctuation and formatting (e.g., hyphens between numbers and names, commas between multiple locants).
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1mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Ethers
Ethers are a class of organic compounds characterized by an oxygen atom bonded to two alkyl or aryl groups. They have the general formula R-O-R', where R and R' represent the hydrocarbon chains. Ethers are commonly used as solvents and in the synthesis of other organic compounds. Understanding their structure is essential for determining their systematic names.
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IUPAC Nomenclature
The International Union of Pure and Applied Chemistry (IUPAC) nomenclature provides a systematic method for naming chemical compounds. For ethers, the naming convention typically involves identifying the longest carbon chain and using the suffix 'ether' after naming the two alkyl groups attached to the oxygen. Familiarity with IUPAC rules is crucial for accurately naming organic compounds.
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Functional Groups
Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. In the case of ethers, the functional group is the ether linkage (R-O-R'). Recognizing functional groups helps in predicting the behavior of compounds and is vital for systematic naming in organic chemistry.
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