Organic Lab (I) Expt 7: Bromination of Stilbene

What is the number of possible isomers for 1,2-dibromo-1,2-diphenylethane?

• 2

• 3

• 4

• 5

The reaction between bromine and stilbene can be described as

• a nucleophilic substitution

• an electrophilic addition

• an elimination

• a nucleophilic addition

What is the correct IUPAC name of this compound?

• (1S,2S)-1,2-dibromo-1,2-diphenylethane

• (1S,2R)-1,2-dibromo-1,2-diphenylethane

• (1R,2R)-1,2-dibromo-1,2-diphenylethane

• (2R,3R)-1,2-dibromo-1,2-diphenylethane

The addition of a bromine molecule across a carbon-carbon double bond usually undergo

• an anti addition

• a syn addition

• a triple addition

• a chiral addition

In the reaction between bromine and stilbene, bromine is

• a reductant

• an electrophile

• a nucleophile

• an oxidant