Water → tert-Butyl 2-[2-(aminocarbonylmethyl)phenoxy]-2-methylpropionate

HRID 2215182Notes

Reaction equation

[OH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]([NH2:11])=[O:10].C(=O)([O-])[O-].[K+].[K+].Br[C:19]([CH3:28])([CH3:27])[C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21].O>C(#N)C>[NH2:11][C:9]([CH2:8][C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=1[O:1][C:19]([CH3:28])([CH3:27])[C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])=[O:10]

Participants

Conditions

Temperature: 80 °C

Procedure

2-Hydroxyphenyl acetamide (1.2 g, 7.93 mmol) was dissolved in acetonitrile (10 mL), and potassium carbonate (5.5 g, 39.6 mmol) was added to the solution. Subsequently, to the mixture, tert-butyl 2-bromoisobutyrate (8.9 g, 39.6 mmol) was added, followed by stirring at 80° C. After completion of reaction, water was added to the mixture. The resultant mixture was extracted with ethyl acetate, followed by washing the organic layer with water. The mixture was subjected to drying over sodium sulfate, concentration under reduced pressure, and purification by silica gel chromatography (chloroform/methanol=40/1), whereby the target compound was obtained (1.4 g, 4.87 mmol, 61%).

Workup

additionwas added to the mixture
extractionThe resultant mixture was extracted with ethyl acetate
washby washing the organic layer with water
dry with materialto drying over sodium sulfate, concentration under reduced pressure, and purification by silica gel chromatography (chloroform/methanol=40/1), whereby the target compound
customwas obtained (1.4 g, 4.87 mmol, 61%)

Sources & evidence

ORD record: ord-f88a68570a604894bd5999608962751b
Source dataset: uspto-grants-2006_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07109226B2

Reaction notes

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