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cum obtinem din toluen == acid p-benzendicarboxilic

Răspuns :

C6H5-CH3 + CH3Cl= AlCl3=> H3C-C6H4-CH3 (1,4-dimetilbenzen sau para-xilen)
H3C-C6H4-CH3 + 6[O] = KMnO4/H2SO4=> HOOC-C6H4-COOH + 2 H2O
HOOC-C6H4-COOH= 1.4-dicarboxibenzen, acid 1.4-benzendioic, acid tereftalic