Pyridine → HCID 21224903, compound

HRID 1584661Notes

Reaction equation

HRID 1584661 reaction equation
[C:1]1([C:7]2[NH:8][C:9](=[O:24])[N:10]([S:12]([C:15]3[CH:16]=[C:17]4[C:21](=[CH:22][CH:23]=3)[NH:20][CH2:19][CH2:18]4)(=[O:14])=[O:13])[CH:11]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.N1C=CC=CC=1.[N+:31]([C:34]1[CH:42]=[CH:41][C:37]([C:38](Cl)=[O:39])=[CH:36][CH:35]=1)([O-:33])=[O:32]>ClCCl>[C:1]1([C:7]2[NH:8][C:9](=[O:24])[N:10]([S:12]([C:15]3[CH:16]=[C:17]4[C:21](=[CH:22][CH:23]=3)[N:20]([C:38](=[O:39])[C:37]3[CH:36]=[CH:35][C:34]([N+:31]([O-:33])=[O:32])=[CH:42][CH:41]=3)[CH2:19][CH2:18]4)(=[O:14])=[O:13])[CH:11]=2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

Participants

5

Reactant 3

HCID 1049PyridineHCID 85024-Nitrobenzoyl chlorideHCID 11002343HCID 11002343, compound

Product 1

HCID 21224903HCID 21224903, compoundYield 92.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

4-Phenyl-1-(indoline-5-sulfonyl)-2-imidazolone (300 mg, 0.88 mmol) prepared in Preparation 3 was suspended in 10 ml of dichloromethane. Then, pyridine (85 μl, 1.05 mmol) and 4-nitrobenzoyl chloride (163 mg, 0.88 mmol) were added thereto one after another. The resulting reaction mixture was stirred at room temperature under nitrogen atmosphere for 5 hours while the reaction being monitored by TLC. After the reaction was completed, the whole mixture was diluted with dichloromethane, washed with brine, dried over anhydrous magnesium sulfate, concentrated, and finally purified by silica gel column chromatography (eluent:dichloromethane/methanol=15/1, v/v) to afford 400 mg of the title compound as a yellow solid.

Workup

  1. customThe resulting reaction mixture
  2. washwashed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated
  5. customfinally purified by silica gel column chromatography (eluent

Sources & evidence

ORD record
ord-9983c35943cd4d8dbf6ee2bbf92ce824
Source dataset
uspto-grants-1999_08
Patent number
US05932742

Reaction notes

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