4-Chloroaniline → HCID 21313260, compound
Reaction equation
[Cl:1][C:2]1[CH:8]=[CH:7][C:5]([NH2:6])=[CH:4][CH:3]=1.[Cl:9][C:10]([S:14](Cl)(=[O:16])=[O:15])=[C:11]([Cl:13])[Cl:12]>C(Cl)(Cl)Cl>[Cl:1][C:2]1[CH:8]=[CH:7][C:5]([NH:6][S:14]([C:10]([Cl:9])=[C:11]([Cl:13])[Cl:12])(=[O:16])=[O:15])=[CH:4][CH:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 7.6 g (0.06 mol) p-chloroaniline and 7.0 g (0.03 mol) trichlorovinylsulfonyl chloride in 150 ml chloroform was heated under reflux for 3 hours. The reaction mixture was then cooled, washed with water, dried over magnesium sulfate and evaporated to give an oily residue. The residue was chromatographed on silica gel. N-(p-chlorophenyl)trichlorovinylsulfonamide, m.p. 73°-76° C., was eluted from the silica gel with 30% ether-70% hexane. Elemental analysis for C8H5Cl4NO2S showed: calculated, %S, 9.99, %Cl 44.2; found, %S, 10.1, %Cl 48.2.
Workup
- temperatureunder reflux for 3 hours
- temperatureThe reaction mixture was then cooled
- washwashed with water
- dry with materialdried over magnesium sulfate
- customevaporated
- customto give an oily residue
- customThe residue was chromatographed on silica gel
- washN-(p-chlorophenyl)trichlorovinylsulfonamide, m.p. 73°-76° C., was eluted from the silica gel with 30% ether-70% hexane
Sources & evidence
- ORD record
- ord-3fea5737799040119d56392efdbac867
- Source dataset
- uspto-grants-1979_07
- Patent number
- US04160845
Reaction notes
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