Reduction of Nitro compounds CH Fe Feso CH NaoH E HOCH2 -C-NOL H20-H2SON HOCHo-C-NH CH CH R一NO R一NH 2 M/H. Zn/Hcl Fe/hcl. Sn/hcl H2/ Catalyst NayS, NaSH, (NH4)HS,(NH4)2S
Organic Chemistry Organic Chemistry Xiamen Xiamen University University Reduction of Nitro compounds HOCH 2 C NO 2 CH 3 CH 3 Fe, FeSO 4 H 2OH 2SO 4 NaOH HOCH 2 C NH 2 CH 3 CH 3 R NO 2 R NH 2 [H ] M / H+ : Z n / H Cl , F e / H Cl , S n / H Cl , H 2 / C atalyst Na 2 S , Na S H, ( N H 4)HS , (N H 4 ) 2 S
3 Reduction of Nitriles, Amides and Oximes ERCN R-CONH [H R R—CHNH C-NOH . [H] LiAlH4, B2H6, H2/Catalyst
Organic Chemistry Organic Chemistry Xiamen Xiamen University University Reduction of Nitriles , Amides and Oximes R CN R CONH2 [H] R CH 2NH 2 [H] LiAl H 4 , B 2 H 6 , H 2 / Cataly s t R C R NOH
3 Reductive Amination of Ketones and Aldehydes H/Ni C6H5CHO NH3(excess) C6HS CH2NH Etoh R H,/Ni R 0 + NH3(excess) CH一NH2 R Etoh rt ①D H,/Ni Nh3(excess) Etoh NH ⑨D
Organic Chemistry Organic Chemistry Xiamen Xiamen University University Reductive Amination of Ketones and Aldehydes C 6 H 5CHO + NH 3 ( excess) H 2 / N i R' C R O + NH 3(e x c e s s ) H 2 / N i R' CH R NH 2 NH 2 + NH 3 ( excess) H 2 / N i O EtOH C 6 H 5CH 2NH 2 EtO H EtOH