The IUPAC name of CH_3-CH(OH)-CH(CH_3)-CH(OH) | vedclass

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Question

(A) $1$. Identify the longest carbon chain containing the functional groups (hydroxyl groups). The chain has $6$ carbon atoms,so the parent alkane is

Vedclass · Accepted Answer

$3, 5, 5-$ Trimethylhexane $-2, 4-$ diol

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(A) $1$. Identify the longest carbon chain containing the functional groups (hydroxyl groups). The chain has $6$ carbon atoms,so the parent alkane is hexane.$2$. Number the chain from the end that gives the lowest locants to the substituents and functional groups. Numbering from left to right gives hydroxyl groups at positions $2$ and $4$,and a methyl group at position $5$. Numbering from right to left gives hydroxyl groups at positions $3$ and $5$,and methyl groups at positions $2, 2, 4$. $3$. According to the lowest locant rule for functional groups,numbering from left to right is preferred ($2, 4$ vs $3, 5$).$4$. The substituents are at position $5$ (methyl). Wait,let's re-evaluate: The structure is $CH_3-CH(OH)-CH(CH_3)-CH(OH)-C(CH_3)_2-CH_3$. The longest chain is $6$ carbons. Numbering from left: $C1(CH_3)-C2(CHOH)-C3(CHCH_3)-C4(CHOH)-C5(C(CH_3)_2)-C6(CH_3)$. This gives substituents at $3, 5, 5$ and diol at $2, 4$. The name is $3, 5, 5-$ trimethylhexane $-2, 4-$ diol.

The $IUPAC$ name of $CH_3-CH(OH)-CH(CH_3)-CH(OH)-C(CH_3)_2-CH_3$ is

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