2,6-Difluorophenyl isocyanate → N-(2-Hydroxy4-nitrophenyl)-N'-(2,6-difluorophenyl)urea

HRID 1419368Notes

Reaction equation

HRID 1419368 reaction equation
[OH:1][C:2]1[CH:8]=[C:7]([N+:9]([O-:11])=[O:10])[CH:6]=[CH:5][C:3]=1[NH2:4].[F:12][C:13]1[CH:18]=[CH:17][CH:16]=[C:15]([F:19])[C:14]=1[N:20]=[C:21]=[O:22]>>[OH:1][C:2]1[CH:8]=[C:7]([N+:9]([O-:11])=[O:10])[CH:6]=[CH:5][C:3]=1[NH:4][C:21]([NH:20][C:14]1[C:15]([F:19])=[CH:16][CH:17]=[CH:18][C:13]=1[F:12])=[O:22]

Participants

3

Reactant 2

HCID 5221622,6-Difluorophenyl isocyanateHCID 49847212-Amino-5-Nitrophenol

Product 1

HCID 21184787N-(2-Hydroxy4-nitrophenyl)-N'-(2,6-difluorophenyl)ureaYield 91%

Procedure

N-(2-Hydroxy-4-nitrophenyl)-N'-(2,6-difluorophenyl)urea was prepared from 2-hydroxy 4-nitro aniline (500 mg, 3.24 mmol) and 2,6-difluoro phenyl isocyanate(3.24 mmol) according to the procedure in General Method B. The product was purified by dilution with methylene chloride and precipitation with hexanes. Filtering afforded the title compound(0.91 g, 91%). EI-MS m/z 308(M-H)-

Workup

  1. customThe product was purified by dilution with methylene chloride and precipitation with hexanes
  2. filtrationFiltering

Sources & evidence

ORD record
ord-cd33445149984f6f9d31ce01fa7665d0
Source dataset
uspto-grants-1999_03
Patent number
US05886044

Reaction notes

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