4-bromo-2 pentene has a chiral carbon and can show enantiomerism. If a racemic mixture of 4-bromo-trans-2-pentene is treated with $B r_{2}$ in $C C l_{4}$ in presence of $F e B r_{3}$ , 2,3,4-tribromopentane is formed. How many stereoisomers would be produced in this reaction?

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Solution

4-bromo-2 pentene has a chiral carbon and can show enantiomerism. If a racemic mixture of 4-bromo-trans-2-pentene is treated with $B r_{2}$ in $C C l_{4}$ in presence of $F e B r_{3}$ , 2,3,4-tribromopentane is formed. Three stereoisomers would be produced in this reaction. The product contains 2chiral centers and is symmetrical. Hence, it has 3 stereoisomers.

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