Which of the following is the correct expression for maximum number of configurational isomers?
n = number of stereocenters m = number of stereogenic double bonds

Question

Which of the following is the correct expression for maximum number of configurational isomers? n = number of stereocenters m = number of stereogenic double bonds

TestHub · Accepted Answer

Ans. (A) 2^(n-m).

Sol. Each stereogenic double bond accounts for two of the counted stereocentres but contributes only one independent stereogenic element. The number of independent stereogenic elements is therefore (n - m), and the maximum number of configurational isomers = 2^(n-m).

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