Draw the structure for each of the following:
c. 3-benzylpentane
d. bromomethylbenzene

Verified step by step guidance

Step 1: Understand the naming conventions for the compounds. For 3-benzylpentane, 'benzyl' refers to a benzene ring attached to a CH2 group, and 'pentane' is a straight-chain alkane with five carbon atoms. The '3-' indicates that the benzyl group is attached to the third carbon of the pentane chain.

Step 2: Draw the pentane backbone. Represent it as a straight chain of five carbon atoms: CH3-CH2-CH2-CH2-CH3.

Step 3: Attach the benzyl group to the third carbon of the pentane chain. The benzyl group consists of a benzene ring (C6H5) attached to a CH2 group. Replace one hydrogen atom on the third carbon of the pentane chain with the benzyl group.

Step 4: For bromomethylbenzene, recognize that the name indicates a benzene ring with a bromomethyl group (-CH2Br) attached. The bromomethyl group consists of a CH2 group bonded to a bromine atom.

Step 5: Draw the benzene ring (a hexagon with alternating double bonds) and attach the bromomethyl group (-CH2Br) to one of the carbons on the benzene ring. Ensure the structure reflects the correct bonding and connectivity.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

IUPAC Nomenclature

IUPAC nomenclature is a systematic method for naming organic chemical compounds. It provides a set of rules to derive the names of compounds based on their structure, including the identification of the longest carbon chain and the correct placement of substituents. Understanding these rules is essential for accurately interpreting and drawing chemical structures.

Structural Representation

Structural representation refers to the way in which the arrangement of atoms in a molecule is depicted. This can include line-angle formulas, condensed formulas, or three-dimensional models. For the compounds in the question, it is important to visualize how substituents like benzyl and bromomethyl are attached to the main carbon chain.

Functional Groups

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. In the context of the question, recognizing the benzyl group (a phenyl group attached to a CH2) and the bromomethyl group (a CH2Br group) is crucial for accurately drawing the structures of 3-benzylpentane and bromomethylbenzene.

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