Hydrochloric Acid → N-(2-benzoyl-4-chloro-phenyl)-4-iodo-benzenesulfonamide

HRID 239845

Reaction equation

HRID 239845 reaction equation
[NH2:1][C:2]1[CH:15]=[CH:14][C:13]([Cl:16])=[CH:12][C:3]=1[C:4]([C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)=[O:5].[CH:17]1[C:22]([S:23](Cl)(=[O:25])=[O:24])=[CH:21][CH:20]=[C:19]([I:27])[CH:18]=1.Cl>N1C=CC=CC=1.C1(C)C=CC=CC=1>[C:4]([C:3]1[CH:12]=[C:13]([Cl:16])[CH:14]=[CH:15][C:2]=1[NH:1][S:23]([C:22]1[CH:17]=[CH:18][C:19]([I:27])=[CH:20][CH:21]=1)(=[O:25])=[O:24])(=[O:5])[C:6]1[CH:7]=[CH:8][CH:9]=[CH:10][CH:11]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 73994-Iodobenzenesulfonyl chlorideHCID 128702-Amino-5-chlorobenzophenone

Product 1

HCID 10028837N-(2-benzoyl-4-chloro-phenyl)-4-iodo-benzenesulfonamide

Reagents, catalysts & solvents 2

HCID 1049PyridineSolventHCID 1140TolueneSolvent

Procedure

To a magnetically stirred solution of 2-amino-5-chlorobenzophenone (1.62 g, 7.0 mmol) in dry pyridine (30 mL) was added dropwise a solution of pipsyl chloride in toluene (12 mL) and the reaction was stirred at ambient temperature. The reaction was added to cold (ice bath) 6M hydrochloric acid with stirring and the mixture was extracted with ethyl acetate (3×50 mL). The extracts were washed with water and with saturated aqueous NaCl. The organic layer was dried (MgSO4), filtered and concentrated to give a crystalline solid. The product was filtered, washed with hexane and dried (vacuum) to get white crystalline solid. 1H NMR (CDCl3) δ 9.63 (br s, 1H, NH), 7.75 (dm, 1H, J=8.8 Hz), 7.62 (tm, 1H, J=7.6 Hz), 7.56 (dm, 1H, J=7.6 Hz), 7.48 (m, 3H), 7.32 (m, 5H). MS: m/z 498.0 (M+1).

Workup

  1. stirringwith stirring
  2. extractionthe mixture was extracted with ethyl acetate (3×50 mL)
  3. washThe extracts were washed with water and with saturated aqueous NaCl
  4. dry with materialThe organic layer was dried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customto give a crystalline solid
  8. filtrationThe product was filtered
  9. washwashed with hexane
  10. customdried (vacuum)
  11. customto get white crystalline solid

Sources & evidence

ORD record
ord-fb94709c1f074dc18b8ad86fd932c0bc
Source dataset
uspto-grants-2014_02
Patent number
US08642808B2

Linked notes

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