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Q41.

Expert-verified
Organic Chemistry
Found in: Page 376

Short Answer

Question: Name each ether, epoxide, thiol, and sulfide

a.

b.

c.

d.

e.

Answer

a. The name of the compound is dicyclohexyl ether.

b. The name of the compound is 3-ethoxy-4, 4-dimethylheptane.

c. The name of the compound is 2-butyl-2-methyloxirane.

d. The name of the compound is ethyl(3-methyloctan-4-yl) sulfane.

e. The name of the compound is 2,2,4-trimethylcyclopentanethiol.

See the step by step solution

Step by Step Solution

Step-by-Step SolutionStep 1: Nomenclature of ether and epoxide

Simple ethers possess common names. The alkyl groups are named in the beginning and are organized alphabetically. This is followed by the addition of the word ether to the name.

Epoxides can be named epoxyalkanes, oxiranes, or alkene oxides. Epoxides linked to several carbon atoms are regarded as derivatives of oxirane.

Step 2: Nomenclature of thiol and sulfide

The nomenclature of thiols is identical to alcohols. The carbon chain is named in the beginning, followed by the suffix thiol. The naming of sulfides is similar to that of ether.

Step 3: Naming of ether, epoxide, thiol, and sulfide

a. The given compound contains an ether linkage (R-O-R). It comprises an oxygen atom that is linked to two cyclohexyl rings. Hence, the name of the compound is dicyclohexyl ether

Nomenclature of compound a

b. The longest carbon chain contains seven carbon atoms. The third carbon contains a short alkoxy chain containing two carbon atoms. The compound has an ether linkage. Hence, the name of the compound is 3-ethoxy-4,4-dimethylheptane.

Nomenclature of compound b

c. The longest carbon chain comprises six carbon atoms, but the compound has an epoxide ring. The epoxide ring contains one oxygen atom and two carbon atoms. Hence, the name of the compound is 2-butyl-2-methyloxirane.

Nomenclature of compound c

d. The longest carbon chain contains eight carbon atoms. One methyl group is linked to the third carbon, and one ethyl group is connected to the sulfur atom. The given compound is a sulphide derivative.

Hence, the name of the compound is ethyl(3-methyloctan-4-yl) sulfane.

Nomenclature of compound d

e. The ring contains five carbon atoms, and the parent is cyclopentane. One methyl group is connected to the fourth carbon, and two methyl groups are connected to the second carbon. The thiol group is also present in the first carbon atom.

The name of the compound is 2,2,4-trimethylcyclopentanethiol.

Nomenclature of compound e

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