NH2/(C )H) HCI NaNO+ 2HCI NEN-\ CH2N(C 2H2)+ NaCl + 2H20 N=①N+ NaoH COOCH2CH-N(C2H2)+NaCl +H20 橙红色沉淀NH2 COOCH2CH2N(C2H2 ) 2 HCl + NaNO2 + 2HCl N COOCH2CH2N(C2H2 ) N 2 + NaCl + 2H2O Cl N COOCH2CH2N(C2H2 ) N 2 Cl + OH + NaOH N COOCH2CH2N(C2H2 ) N= 2 OH + NaCl +H2O 8 橙红色沉淀