Ch. 3 - An Introduction to Organic Compounds: Nomenclature, Physical Properties, and Structure

Bruice8th EditionOrganic ChemistryISBN: 9780135213711당신이 사용하는 게 아니라요?교과서 변경

Bruice 8th Edition

Ch. 3 - An Introduction to Organic Compounds: Nomenclature, Physical Properties, and Structure

문제 70f

3장, 문제 70f

Draw skeletal structures for the following:
f. 2,6-dimethyl-4-(2-methylpropyl)decane

검증된 단계별 안내

Step 1: Start by identifying the parent chain. The parent chain is 'decane,' which means it contains 10 carbon atoms in a straight chain. Draw a straight chain of 10 carbons.

Step 2: Number the parent chain from one end to the other to ensure the substituents are assigned the lowest possible numbers. In this case, number the chain from left to right.

Step 3: Add the substituents to the parent chain. The name '2,6-dimethyl' indicates that there are methyl groups (-CH₃) attached to carbons 2 and 6 of the parent chain. Draw these methyl groups branching off from the respective carbons.

Step 4: Add the next substituent, '4-(2-methylpropyl).' This indicates that at carbon 4 of the parent chain, there is a 2-methylpropyl group attached. A 2-methylpropyl group consists of a three-carbon chain with a methyl group attached to the second carbon. Draw this group branching off from carbon 4.

Step 5: Double-check the structure to ensure all substituents are correctly placed and the parent chain remains intact. Verify that the numbering matches the IUPAC name and that all bonds are correctly drawn.

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주요 개념

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Skeletal Structures

Skeletal structures, or line-angle formulas, are a simplified way of representing organic molecules. In these diagrams, carbon atoms are represented by vertices or ends of lines, while hydrogen atoms are implied and not explicitly drawn. This method allows chemists to visualize complex molecules more easily, focusing on the connectivity and functional groups rather than individual atoms.

IUPAC Nomenclature

IUPAC nomenclature is a systematic method for naming organic chemical compounds. It provides rules for identifying the longest carbon chain, substituents, and their positions. Understanding IUPAC naming conventions is essential for interpreting the names of compounds and translating them into their corresponding skeletal structures, as seen in the example of 2,6-dimethyl-4-(2-methylpropyl)decane.

Substituents and Branching

Substituents are groups of atoms that replace hydrogen atoms in a hydrocarbon chain, affecting the molecule's properties and reactivity. In the case of 2,6-dimethyl-4-(2-methylpropyl)decane, the 'dimethyl' and '2-methylpropyl' groups indicate branching off the main carbon chain. Recognizing how to depict these branches in skeletal structures is crucial for accurately representing the compound's structure.

Draw skeletal structures for the following: f. 2,6-dimethyl-4-(2-methylpropyl)decane