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प्रश्न
IUPAC name of the compound \[\begin{array}{cc}
\ce{CH3 - CH - OCH3}\\
\phantom{}|\phantom{....}\\
\phantom{}\ce{CH3}\phantom{..}
\end{array}\] is ______.
पर्याय
1-methoxy-1-methylethane
2-methoxy-2-methylethane
2-methoxypropane
isopropylmethyl ether
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उत्तर
IUPAC name of the compound \[\begin{array}{cc}
\ce{CH3 - CH - OCH3}\\
\phantom{}|\phantom{....}\\
\phantom{}\ce{CH3}\phantom{..}
\end{array}\] is 2-methoxypropane.
Explanation:
Given molecule: \[\begin{array}{cc}
\ce{CH3 - CH - OCH3}\\
\phantom{}|\phantom{....}\\
\phantom{}\ce{CH3}\phantom{..}
\end{array}\]
It is an ether ROR′. In naming ether, a smaller alkyl group among R and R' is treated as a side group as alkoxy and the other as alkane along with the position of the alkoxy group. Thus in the given molecule, it is the methoxy group at the second position of propane (alkane).
\[\begin{array}{cc}
\ce{\overset{1}{C}H3-\overset{2}{C}H-OCH3}\\
\phantom{}|\phantom{....}\\
\phantom{}\ce{\overset{3}{C}H3}\phantom{..}
\end{array}\]
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Name the following compound according to IUPAC system.
\[\begin{array}{cc}
\phantom{............}\ce{CH2OH}\\
\phantom{......}|\\
\ce{CH3 - CH2 - CH - CH - CH - CH3}\\
\phantom{......}|\phantom{............}|\phantom{.}\\
\phantom{........}\ce{CH2Cl}\phantom{......}\ce{CH3}\phantom{}
\end{array}\]
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\ce{CH3 - CH2 - O - CH - CH2 - CH3}\\
\phantom{...}|\\
\phantom{.....}\ce{CH3}
\end{array}\]
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\phantom{..}\ce{H}\phantom{...}\ce{CH3}\phantom{.}\ce{H}\phantom{..}\\
\phantom{}|\phantom{....}|\phantom{....}|\phantom{}\\
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\phantom{}|\phantom{....}|\phantom{....}|\phantom{}\\
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\end{array}\]
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\ce{CH3CH-CH2Br ->[CH3O^-][CH3OH] is}\\
|\phantom{................}\\
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\end{array}\]
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Write the IUPAC name of the following compound:
\[\begin{array}{cc}
\phantom{..............}\ce{CH3}\\
\phantom{............}|\\
\ce{CH3 - CH - CH - C - CH3}\\
|\phantom{.....}|\phantom{......}|\\
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\end{array}\]
Write IUPAC name of the following compound:
\[\begin{array}{cc}
\phantom{...............}\ce{CH3}\\
\phantom{............}|\\
\ce{CH3 - CH - CH - C - CH3}\\
|\phantom{......}|\phantom{......}|\\
\phantom{...}\ce{CH3}\phantom{...}\ce{OH}\phantom{...}\ce{CH3}
\end{array}\]
