Phenyl isocyanate → HCID 23511986, compound

HRID 350444Notes

Reaction equation

HRID 350444 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]([O:11][CH3:12])=[O:10])=[CH:4][C:3]=1[Cl:13].[C:14]1([N:20]=[C:21]=[O:22])[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>C1COCC1>[Cl:13][C:3]1[CH:4]=[C:5]([CH2:8][C:9]([O:11][CH3:12])=[O:10])[CH:6]=[CH:7][C:2]=1[NH:1][C:21]([NH:20][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)=[O:22]

Participants

4

Reactant 2

HCID 7672Phenyl isocyanateHCID 13616273Methyl 2-(4-amino-3-chlorophenyl)acetate

Product 1

HCID 23511986HCID 23511986, compoundYield 86%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a mixture of methyl 4-amino-3-chlorophenylacetate (1.31 g, 6.56 mmol) and phenyl isocyanate (0.71 ml, 6.56 mmol) in THF (20 ml) was added Et3 N (0.19 ml, 1.33 mmol) at room temperature. After 15 h stirring, the reaction mixture was concentrated in vacuo. The residue was triturated by the addition of n-hexane to give methyl 3-chloro-4-(N′-phenylureido)phenylacetate (1.79 g, 86%) as a pale brown solid. 1H-NMR (CDCl3) δ 3.56 (s, 2H), 3.70 (s, 3H), 6.70 (m, 1H), 7.06 (s, 1H), 7.14–7.18 (m, 2H), 7.26 (dd, J=7.8, 1.9 Hz, 1H), 7.33–7.38 (m, 4H), 8.14 (dd, J=8.3, 3.0 Hz, 1H); MS (ESI) m/z 319 (M++1), 321 (M++3).

Workup

  1. additionwas added Et3 N (0.19 ml, 1.33 mmol) at room temperature
  2. concentrationthe reaction mixture was concentrated in vacuo
  3. customThe residue was triturated by the addition of n-hexane

Sources & evidence

ORD record
ord-46d1ef48d08149a4aeb229b520c9d304
Source dataset
uspto-grants-2007_02
Patent number
US07179819B2

Reaction notes

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