Question

How to calculate stereoisomers of a compound for even numbers?

Answer 1

Answer:

For geometrical isomers (i.e. in case of polyenes),

If 'n' is even (here n is the number of double bonds):Number of stereoisomers=2n−1+2n/2−1.

If 'n' is odd, then: Number of stereoisomers=2n−1+2(n−1)/2.

Answer 2

Answer:

For geometrical isomers (i.e. in case of polyenes),

1. If 'n' is even (here n is the number of double bonds):Number of stereoisomers=2n−1+2n/2−1.

2. If 'n' is odd, then: Number of stereoisomers=2n−1+2(n−1)/2.