Organic Chemistry

Learn the toughest concepts covered in Organic Chemistry with step-by-step video tutorials and practice problems by world-class tutors.

4. Alkanes and Cycloalkanes

Naming Bicyclic Compounds

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Bicyclic rings possess multi-ring systems within the same molecule

Types of Bicyclic Molecules

Basically there two general categories of bicyclics:

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The two types of bicyclic molecules

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Bridged Bicyclic Nomenclature (Three Rings)

  • The bridgehead atom (one of the circled ones) must always be in the “1” position
  • The name is formatted as bicyclo[ringsize1.ringsize2.ringsize3]alkane
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How to name a bridged bicyclic

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Fused Bicyclic Nomenclature (Two Rings)

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How to name a fused bicyclic

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*Error: The name of this molecule was misstated in the video. Please refer to the name below (pentane)!

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Awesome job! These are some of the hardest molecules to name, so if you got them, you’re ahead of the curve.