Problems and exercisesLarger and Polycyclic Cycloalkanes
1. Count the rings
Using the formula CnH2n+2−2r, calculate how many rings cubane (C8H8), bicyclo[1.1.0]butane (C4H6) and dodecahedrane (C20H20) have.
2. Naming bicycles
What do the numbers in brackets mean in bicyclo[2.2.1]heptane? What is its molecular formula?
3. cis- and trans-Decalin
Why can cis-decalin invert its chairs while trans-decalin cannot?
4. Large rings
From what size does strain disappear in cycloalkanes? Why do cycloheptane or cyclodecane still have strain?