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Hydrochloric Acid → 2,3-Difluoro-6-(2,2-diethoxycarbonylethenyl)amino-[(2-p-toluenesulfonyloxypropyl)oxy]benzene

HRID 846330
Notes
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Reaction equation

HRID 846330 reaction equation
[F:1][C:2]1[C:7]([F:8])=[CH:6][CH:5]=[C:4]([NH:9][CH:10]=[C:11]([C:17]([O:19][CH2:20][CH3:21])=[O:18])[C:12]([O:14][CH2:15][CH3:16])=[O:13])[C:3]=1[O:22][CH2:23][CH:24]([OH:26])[CH3:25].[C:27]1([CH3:37])[CH:32]=[CH:31][C:30]([S:33](Cl)(=[O:35])=[O:34])=[CH:29][CH:28]=1.C(OCC)(=O)C.Cl>N1C=CC=CC=1>[F:1][C:2]1[C:7]([F:8])=[CH:6][CH:5]=[C:4]([NH:9][CH:10]=[C:11]([C:17]([O:19][CH2:20][CH3:21])=[O:18])[C:12]([O:14][CH2:15][CH3:16])=[O:13])[C:3]=1[O:22][CH2:23][CH:24]([O:26][S:33]([C:30]1[CH:31]=[CH:32][C:27]([CH3:37])=[CH:28][CH:29]=1)(=[O:35])=[O:34])[CH3:25]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 73974-Toluenesulfonyl chlorideHCID 8857Ethyl AcetateHCID 146971832,3-Difluoro-6-(2,2-diethoxycarbonylethenyl)amino-[(2-hydroxypropyl)oxy]benzene

Product 1

HCID 146971842,3-Difluoro-6-(2,2-diethoxycarbonylethenyl)amino-[(2-p-toluenesulfonyloxypropyl)oxy]benzeneYield 94.7%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To a solution of 747 mg of the compound obtained in Example 3 in 2 ml of pyridine was added 710 mg of p-toluenesulfonyl chloride and the mixture was stirred under cooling with ice for 24 hours, and then at room temperature for 4 hours. To the mixture were added ethyl acetate and 1 N hydrochloric acid. The mixture was shaken, and the organic layer was separated. The organic layer was washed with water and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure. The residue was purified through silica gel column chromatography to yield 1.0 g of the titled compound.

Workup

  1. temperatureunder cooling with ice for 24 hours
  2. stirringThe mixture was shaken
  3. customthe organic layer was separated
  4. washThe organic layer was washed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solvent was removed under reduced pressure
  7. customThe residue was purified through silica gel column chromatography

Sources & evidence

ORD record
ord-7f9f974044b74eb39507be53a4072bb3
Source dataset
uspto-grants-1992_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05136059

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes