()Reaction with Nitrous Acid HNO2,亚硝酸 NaNO2/HCl, NaNO2/H2sO4 芳香伯胺 重氮化反应 NH] Diazotization 2Cl NaNO2/HCi(aq nacl Diazonium salt 氯化重氮苯 重氮盐 Mechanism H HONO+H÷HO-NONO+H2O Ar-NH2 NO Ar-N-NO -Ar-N-N=OTAr-N=N-OH H H +h Ar--N=N-OH hoo Ar-N三N(五) Reaction with Nitrous Acid HNO2 , 亚硝酸 NaNO2 /HCl, NaNO2 /H2SO4 芳香伯胺 NH2 NaNO2/HCl(aq.) 0-5 C o N2 + Cl - + NaCl 氯化重氮苯 Diazonium Salt 重氮盐 重氮化反应 Diazotization HONO + H + HO NO H + NO + H2O Ar NH2 + NO Ar N NO H H -H + Ar N N H O Ar N N OH + H + Ar N N OH2 -H2O Ar N N Mechanism