Question 18.7: Name the following compounds....
Name the following compounds.
(a)\begin{matrix}&&&&CH_3\\&&&&|\\H_3C&-&C&=&C&-&CH_2&-&CH_3 \\ &&| \\&&H_2C \\&&|\\&&CH_3 \end{matrix} (b) \begin{matrix}&&&&CH_3\\&&&&|\\&&H_3C&-&CH \\&&&&|\\H_3C&-&HC&-&CH&-&C&\equiv&CH \\&&|\\&&CH_3 \end{matrix}
Step-by-Step
(a) Follow the procedure for naming alkanes, keeping in mind the exceptions for naming alkenes.
\begin{matrix}&&&&CH_3\\&&&&|\\H_3C&-&C&=&C&-&CH_2&-&CH_3 \\ &&| \\&&H_2C \\&&|\\&&CH_3 \end{matrix} \begin{matrix}&&&&CH_3\\&&&&|\\H_3C&-&\overset{3}C&=&\underset{4}C&-&\overset{5}CH_2&-&\overset{6}CH_3 \\ &&| \\&&H_2\overset{2}C \\&&|\\&&\underset{1}CH_3 \end{matrix}3,4-dimethyl-3-hexene
(b) Follow the procedure for naming alkanes keeping in mind the exceptions for naming alkynes.
\begin{matrix}&&&&CH_3\\&&&&|\\&&H_3C&-&CH \\&&&&|\\H_3\underset{5}C&-&H\overset{4}C&-&\underset{3}CH&-&\underset{2}C&\equiv&\underset{1}CH \\&&|\\&&CH_3 \end{matrix}3-isopropyl-4-methyl-1-pentyne
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