Viết pthh: Toluen –(Cl2, as)–> A1 –(NaOH, t°)–> A2 –(CuO, t°)–> A3 –(AgO2, dd NH3, t°)–> A4

$A_1: C_6H_5CH_2Cl$

$A_2: C_6H_5CH_2OH$

$A_3: C_6H_5CHO$

$A_4: C_6H_5COONH_4$

PTHH:

$C_6H_5CH_3+Cl_2\xrightarrow{{as}} C_6H_5CH_2Cl+HCl$

$C_6H_5CH_2Cl+NaOH\xrightarrow{{t^o}}C_6H_5CH_2OH+NaCl$

$C_6H_5CH_2OH+CuO\xrightarrow{{t^o}} C_6H_5CHO+Cu+H_2O$

$C_6H_5CHO+2[Ag(NH_3)_2]OH\to C_6H_5COONH_4+2Ag+3NH_3+H_2O$