4 bromo 2 3 dimethylpent 2 ene July 8, 2019 16 32 64 128 E )- 2 bromo 3 4 dimethylpent 2 ene Z )- 2 bromo 3 4 dimethylpent 2 ene 2 bromo 2 3 dimethylbutane 2 3-dimethyl bromobenzene
