13. AROMATIC SIDE CHAINS BY Function Group Interconversion Y X Reagent Reduction -NO 2 -NH 2 H 2 , Pd, C Sn, conc.HCl -COR -CH(OH)R NaBH 4 -COR -CH 2 R Zn/Hg/conc.HCl
14. AROMATIC SIDE CHAINS BY Functional Group Interconversion Oxidation Y X Reagent - CH 2 Cl -CHO hexamine - CH 2 R -CO 2 H KMnO 4 -CH 3 - COR -OCOR R’CO 3 H
15. Aromatic Side Chains by Functional Group Interconversion Substitution Y X Reagent -CH 3 -CCl3 Cl 2 ,PCl 5 - CCl 3 -CF3 SbF 5 -CN -COOH HO-, H 2 O
16. Nucleophilic Aromatic Substitution Reactions Addition of an oxygen atom to an aromatic ring Add anionic reagents RO - to an Aromatic compound with a leaving Group .
20. Synthesis HNO 3 H 2 SO 4 Sn/H + HOAc Br 2 NaOH NaNO 2 /HCl H 2 O
21. Aromatic compounds made by nucleophilic displacement of daizonium salts Reagent_____ HO H 2 O RO ROH CN Cu(I)CN Br/Cl Cu(I)Br/Cu(I)Cl I KI H H 3 PO 2 or EtOH/H + ____Z_____
24. NUCLEOPHILIC SUBSTITUTION OF HALIDES Direct displacement of halide from an aromatic ring is possible only if : There are ortho and para nitro groups OR Similar electron-withdrawing groups