Find the sum of all the stereocenters that are present in below compounds :
(I) (II) (III) (IV)

Question

Find the sum of all the stereocenters that are present in below compounds : (I) (II) (III) (IV)

TestHub · Accepted Answer

Stereocenters are marked with asterisk (*) :

(I) structure (II) (III) (IV)

(I) 3 : one ring stereocenter + the two carbons of the stereogenic C=C bond.

(II) 4 : two ring stereocenters + the two carbons of the stereogenic C=C bond.

(III) 1 : one ring stereocenter; the C=C bond is not stereogenic because the exocyclic carbon bears two identical CH₃ groups.

(IV) 2 : two ring stereocenters; the C=C bond is not stereogenic (two identical CH₃ groups).

Sum = 3 + 4 + 1 + 2 = 10

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