Chemistry · Isomerism: structural and stereoisomerism
Two stereo isomers are obtained on treating Bromine molecule with trans2-pentene
Two stereo isomers are obtained on treating Bromine molecule with trans2-pentene. What are these isomers?
- A. d and I
- B. E and z
- C. cis and trans
- D. None of these
Step-by-step solution
Bromine adds to trans-2-pentene via anti addition, forming a bromonium ion intermediate. The subsequent nucleophilic attack by bromide occurs from the opposite side, creating two chiral centers in 2,3-dibromopentane. Since the alkene is unsymmetrical, the product is chiral and exists as a pair of enantiomers (d and l).
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