The reaction pathway shown here involves the conversion of ethane (C2H6) to benzene bromide (C6H5Br) through a series of intermediate steps.

Ethane (C2H6) undergoes a dehydrogenation reaction to form ethylene (C2H4).Ethylene (C2H4) undergoes further dehydrogenation to form acetylene (C2H2).Acetylene (C2H2) then undergoes a series of reactions to form benzene (C6H6).Finally, benzene undergoes bromination to form benzene bromide (C6H5Br).

Overall, this reaction pathway involves a series of dehydrogenation and bromination reactions to convert ethane to benzene bromide.