2,4-Difluorophenyl isocyanate → HCID 14801518, compound

HRID 374375Notes

Reaction equation

HRID 374375 reaction equation
[CH:1]1([NH:8][CH2:9][C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([CH2:16][NH:17][CH:18]3[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19]3)[CH:11]=2)[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[F:25][C:26]1[CH:31]=[C:30]([F:32])[CH:29]=[CH:28][C:27]=1[N:33]=[C:34]=[O:35]>CCCCCC>[CH:18]1([N:17]([CH2:16][C:12]2[CH:13]=[CH:14][CH:15]=[C:10]([CH2:9][N:8]([CH:1]3[CH2:7][CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]3)[C:34]([NH:33][C:27]3[CH:28]=[CH:29][C:30]([F:32])=[CH:31][C:26]=3[F:25])=[O:35])[CH:11]=2)[C:34]([NH:33][C:27]2[CH:28]=[CH:29][C:30]([F:32])=[CH:31][C:26]=2[F:25])=[O:35])[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19]1

Participants

4

Reactant 2

HCID 5932582,4-Difluorophenyl isocyanateHCID 14801511HCID 14801511, compound

Product 1

HCID 14801518HCID 14801518, compoundYield 82.3%

Reagents, catalysts & solvents 1

HCID 8058HexaneSolvent2×

Procedure

To a solution of 1 g N,N'-dicycloheptyl-m-xylylenediamine in 50 ml n-hexane, was added dropwise with stirring 5 ml of a n-hexan solution containing 1 g 2,4-difluorophenyl isocyanate under ice cooling. Stirring was continued at room temperature for two hours, the solvent was distilled off under reduced pressure, and the residue was purified by silica gel column chromatography and then recrystallized from isopropanol, giving 1.6 g of 1,3-bis[[1-cycloheptyl-3-(2,4-difluorophenyl)ureido]methyl]benzene.

Workup

  1. distillationthe solvent was distilled off under reduced pressure
  2. customthe residue was purified by silica gel column chromatography
  3. customrecrystallized from isopropanol

Sources & evidence

ORD record
ord-4fd06c7c928042c5a6dd650ea397a395
Source dataset
uspto-grants-1992_11
Patent number
US05166429

Reaction notes

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