Gatterman Reaction CuCN N三NCl K CN CN N2 Schiemann Reaction HBE N≡NCl N三NBF 4 ①D ⑨D F+ N2Organic Chemistry Organic Chemistry Xiamen Xiamen University University Gatterman Gatterman Reaction eaction N N Cl + CuCN KC N CN + N 2 Schiemann Schiemann Reaction eaction N N Cl + HB F 4 N N BF 4 + ∆ F + N 2