Solution: How many unsaturations are present in the following compound?A. noneB. 2C. 3D. 5E. 6

Problem

How many unsaturations are present in the following compound?



A. none

B. 2

C. 3

D. 5

E. 6

Solution

We’re being asked to determine the degrees of unsaturation for the given structure:



Recall that the degrees of unsaturation or index of hydrogen deficiency (IHD) tell us how many hydrogens are missing in a structure.


In a given structure, the IHD is:

Rings: +1

• Double bonds: +1

• Triple bonds: +2


For a given structure, we simply need to determine the number of rings, double and triple bonds to determine the IHD.


Solution BlurView Complete Written Solution