1-(Methanesulfonylmethyl)-4-nitrobenzene → 4-[(methylsulfonyl)methyl]aniline(SALTDATA: FREE)
Reaction equation
[CH3:1][S:2]([CH2:5][C:6]1[CH:11]=[CH:10][C:9]([N+:12]([O-])=O)=[CH:8][CH:7]=1)(=[O:4])=[O:3].[H][H]>C(OCC)(=O)C.[Pd]>[CH3:1][S:2]([CH2:5][C:6]1[CH:11]=[CH:10][C:9]([NH2:12])=[CH:8][CH:7]=1)(=[O:3])=[O:4]Participants
5
Procedure
A solution of 1-[(methylsulphonyl)methyl]-4-nitrobenzene (4 g) in ethyl acetate (300 ml) containing a catalytic amount of palladium on carbon (10%, prehydrogenated, 0.5 g) was hydrogenated at room temperature and pressure until hydrogen uptake ceased (1400 ml, 1 h). The catalyst was filtered off and the filter cake washed with warm ethanol (2×80 ml). The filtrates were combined and concentrated under vacuum to afford the title compound (1.9 g) as a pale yellow crystalline solid, m.p. 167°-168° C.
Workup
- customwas hydrogenated at room temperature
- custom(1400 ml, 1 h)
- filtrationThe catalyst was filtered off
- washthe filter cake washed with warm ethanol (2×80 ml)
- concentrationconcentrated under vacuum
Sources & evidence
- ORD record
- ord-f8bc6ecea16644b99610ca9b3f5cb226
- Source dataset
- uspto-grants-1991_03
- Patent number
- US05001135
Reaction notes
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