Question

Name the following compounds. a. CC=C(C)Br \(\mathbf{b}\). CCCC(CC)=C(C)CC c.

Short answer

a. 2-bromo-4-methyl-2-butene b. 4,7-dimethyl-6-octene

Step-by-step solution

Draw the compound structure

Draw out the compound using the given SMILES notation: CC=C(C)Br. It helps to visualize and identify the functional groups and longest carbon chain. Next, identify the parent chain and numbering.

Identify and number the parent chain

Find the longest continuous carbon chain in the compound, including the carbon atoms with functional groups attached. The chain has 4 carbon atoms with a double bond between the 2nd and 3rd carbon. Number the chain in such a way that the double bond and bromine receives the lowest possible numbers. In this case, the numbering is from left to right. Locate the functional groups and their positions.

Locate the functional groups

The compound has an alkene (\(C=C\)) and a bromo group (\(Br\)) attached to the 2nd and 4th carbons, respectively. According to IUPAC nomenclature, the alkene (\(C=C\)) has priority over the bromo group (\(Br\)). Name the compound.

Name the compound

Combine the parent chain, functional groups, and their positions to generate the IUPAC name: 2-bromo-4-methyl-2-butene \(\mathbf{b}\). CCCC(CC)=C(C)CC First, draw the compound structure.

Draw the compound structure

Draw out the compound using the given SMILES notation: CCCC(CC)=C(C)CC. It helps to visualize and identify the functional groups and longest carbon chain. Next, identify the parent chain and numbering.

Identify and number the parent chain

Find the longest continuous carbon chain in the compound, which has 8 carbon atoms with a double bond between the 6th and 7th carbon. Number the chain from the left to right so that the double bond has the lowest possible number. Locate the functional groups and their positions.

Locate the functional groups

The compound has an alkene (\(C=C\)) on 6th position and methyl groups (\(CH_3\)) on the 4th and 7th carbons. Name the compound.

Name the compound

Combine the parent chain, functional groups, and their positions to generate the IUPAC name: 4,7-dimethyl-6-octene