What Is the Best Method for the Preparation of M-Dibromobenzene

question 78

Multiple Choice

What is the best method for the preparation of m-dibromobenzene from benzene?

• A)nitrate; Sn/HCl; NaNO₂/HCl,0°C; brominate twice
• B)nitrate; Sn/HCl; NaNO₂/HCl,0°C; brominate twice; H₃PO₂
• C)nitrate; Sn/HCl; NaNO₂/HCl,0°C; H₃PO₂; brominate twice
• D)nitrate; brominate; Sn/HCl; NaNO₂/HCl,0°C; CuBr
• E)brominate twice

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