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Drill: Draw & name 2 isomers of C 4 H 10. Cycloalkanes. Cycloalkanes. Alkane chains with the ends joined together Ring structures. Naming Cycloalkanes. Place cyclo in front of the normal name Pentane cyclopentane. Name the organic compound. Substituted Cycloalkanes.
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Cycloalkanes • Alkane chains with the ends joined together • Ring structures
Naming Cycloalkanes • Place cyclo in front of the normal name • Pentane cyclopentane
Substituted Cycloalkanes • Cycloalkanes with other groups attached
Numbering Substituted Cycloalkanes • The carbon with the most important group is # 1, then continue around the ring
4 3 2 1 1-methylcyclobutane
2 1 3 4 5
1-ethyl-2,3-dimethylcyclopentane 2 1 3 4 5
3-ethyl-4-methyl-1- cyclopropylcyclohexane
Cycloalkane Shapes • Demonstrated through modeling
Cycloalkane Shapes • Chair Boat
HW: Draw the condensed, skeletal, & stick structures for 3-methyl-1-propylcyclopentane
Draw each of the following:1,3,5-trimethylcyclohexane1-cyclopropylcyclopentane
Draw condensed & stick structures for:1,3-dimethylcyclopentanecyclobutylcyclohexane