A compound C6H14O2 has two tertiary alcoholic groups. The IUPAC name of compound is:
A
2,3 - dimethyl - 1,2 - butanediol
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B
3,3 - dimethyl - 1,2 - butanediol
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C
2,3 - dimethyl - 2,3 - butanediol
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D
2 - methyl - 2,3 - pentanediol
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Solution
The correct option is C 2,3 - dimethyl - 2,3 - butanediol C6H14O2 with two tertiaryy alcoholic groups possible has the following structure and using the IUPAC nomenclature its name is:
Steps to name an organic molecule:
1. Identify the fuctional group: OH in the given molecule. two Alcoholic group i.e suffix "diol" will come.
2. Identify parent chain: The longest carbon chain that contains the functional group. Here its 4 C chain i.e butane
3. Assign locant number: lowest number to the main functional group and side chains i.e. 2,3-diol and 2,3-dimethyl
4. Identify side chains/groups: two methyl groups.
IUPAC name is: 2,3-dimethyl-2,3-butanediol or 2,3-dimethylbutane-2,3-diol.