The IUPAC name of the compound CH3-C(CH3)2-CH=C(CH3)2 is (a) 1,1,3,3-tetramethyl-but- 1 -ene (b)

step 1 Hi everyone so in this question they asked the UPC name of the compound is CS3 CCS3 Toys C HW1 C

The IUPAC name of the compound CH3-C(CH3)2-CH=C(CH3)2 is (a)...

The IUPAC name of the compound $\mathrm{CH}_{3}-\mathrm{C}\left(\mathrm{CH}_{3}\right)_{2}-\mathrm{CH}=\mathrm{C}\left(\mathrm{CH}_{3}\right)_{2}$ is (a) $1,1,3,3$-tetramethyl-but- 1 -ene (b) $1,3,3$-trimethyl-pent $-2$-ene (c) $2,2,4$-trimethylbut- 4 -ene (d) $2,4,4$-trimethylpent- 2 -ene

The IUPAC name of the compound $\mathrm{CH}_{3}-\mathrm{C}\left(\mathrm{CH}_{3}\right)_{2}-\mathrm{CH}=\mathrm{C}\left(\mathrm{CH}_{3}\right)_{2}$ is
(a) $1,1,3,3$-tetramethyl-but- 1 -ene
(b) $1,3,3$-trimethyl-pent $-2$-ene
(c) $2,2,4$-trimethylbut- 4 -ene
(d) $2,4,4$-trimethylpent- 2 -ene

Key Concepts

IUPAC Nomenclature

IUPAC nomenclature is the systematic method for naming organic compounds in a standard way so that each name describes the structure uniquely. This system involves identifying the longest continuous carbon chain, the principal functional groups, and any substituents, and then assigning positions to each according to standardized rules.

Longest-Chain Selection

Longest-chain selection refers to identifying the continuous carbon chain that contains the highest priority functional group, such as a double bond in alkenes. The selected chain must be as long as possible, even if it involves choosing a branch to include the principal functional group, ensuring the compound's name reflects its complete structure.

Numbering and Locants

Numbering the carbon chain involves assigning locants (position numbers) to the atoms in the main chain such that the principal functional group, like a double bond, and substituents receive the lowest possible numbers. The lowest set of locants rule is applied to resolve ambiguities, ensuring consistency and minimal numbering throughout the molecule.

Substituent Identification

Substituent identification requires recognizing all groups attached to the main chain that are not part of the main path or the principal functional group. Each substituent is named and its position on the chain is indicated by a number, and when multiple identical substituents are present, prefixes like di-, tri-, or tetra- are used according to IUPAC rules.

Functional Group Priority

Functional group priority is the concept where certain groups, such as a carbon-carbon double bond in alkenes, determine the numbering of the carbon chain. This principle ensures that the important structural features are emphasized by receiving the lowest possible position numbers, guiding the overall nomenclature of the molecule.

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