reactions of benzene diazonium salt
Replacement reaction of benzene diazonium chloride by cyanide ion Benzene diazonium salt with cuprous cyanides in presence of potassium cyanide gives cyanobenzene (benzene nitrile)Cyanobenzene formed can be converted to benzoic acid by hydrolysis. This method is used to introduce-COOH group in aromatic ring. Replacement reaction of benzene diazonium chloride by OH - ion Aromatic diazonium salts are unstable and hence easily decompose when warned with water forming phenol and nitrogen gas. Replacement reaction of benzene diazonium chloride by hydrogen Reducing agents like hypo phosphorous acid can replace diazonium group with hydrogen atom producing arene. Visit http://www.entrancechemistry.blogspot.in/2013/05/reactions-of-benzene-diazonium-chloride.html to know more about benzene diazonium salt