Cycloalkanes

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Drill Draw name 2 isomers of C4H10
2
Cycloalkanes
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Cycloalkanes

• Alkane chains with the ends joined together
• Ring structures

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Naming Cycloalkanes

• Place cyclo in front of the normal name
• Pentane ? cyclopentane

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Name the organic compound
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Substituted Cycloalkanes

• Cycloalkanes with other groups attached

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Numbering Substituted Cycloalkanes

• The carbon with the most important group is 1,
  then continue around the ring

10
4
3
2
1
1-methylcyclobutane
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Name
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2
1
3
4
5
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1-ethyl-2,3-dimethylcyclopentane
2
1
3
4
5
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Name the Cycloalkanes on the Board
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Cycloalkane Shapes

• Demonstrated through modeling

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Cycloalkane Shapes

• Chair Boat

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HW Draw complete, condensed, skeletal, stick
structures for 3-methyl-1-propylcyclopentane
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Draw each of the following1,3,5-trimethylcycloh
exane1-cyclopropylcyclopentane
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HW Draw condensed stick structures
for1,3-dimethylcyclopentanecyclobutylcyclohex
ane