Fluoroacetyl chloride → N-(2,2,-Dimethyl-2,3-dihydrobenzofuran-7-ylmethyl)-2-Fluoro-N-(2-phenoxy phenyl)acetamide

HRID 1618809Notes

Reaction equation

[CH3:1][C:2]1([CH3:26])[CH2:6][C:5]2[CH:7]=[CH:8][CH:9]=[C:10]([CH2:11][NH:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[O:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)[C:4]=2[O:3]1.[F:27][CH2:28][C:29](Cl)=[O:30]>C(Cl)Cl>[CH3:1][C:2]1([CH3:26])[CH2:6][C:5]2[CH:7]=[CH:8][CH:9]=[C:10]([CH2:11][N:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[O:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=3)[C:29](=[O:30])[CH2:28][F:27])[C:4]=2[O:3]1

Participants

Conditions

Temperature: 0 °C

Procedure

To a solution of N-(2,2,-Dimethyl-2,3-dihydrobenzofuran-7-ylmethyl)-N-(2-phenoxy phenyl)amine (0.20 g, 0.58 mmol) dissolved in DCM (2 mL) was added TEA (0.24 g, 2.32 mmol, 0.32 mL). The reaction was cooled to 0° C. and fluoroacetyl chloride (0.11 g, 1.16 mmol, 0.08 mL) was added. The mixture was stirred at room temperature for 1 h. The solvents were removed in vacuo, the residue quenched with water (10 mL), extracted with DCM (2×20 mL), dried over MgSO4, filtered and solvents removed in vacuo. The crude material was purified by silica gel chromatography eluting with DCM (A) and MeOH (B) (1% B, 80 g, 2 CV, 60 mL/min) to afford 170 mg (72%) of N-(2,2,-Dimethyl-2,3-dihydrobenzofuran-7-ylmethyl)-2-Fluoro-N-(2-phenoxy phenyl)acetamide as a pale yellow oil.

Workup

customThe solvents were removed in vacuo
customthe residue quenched with water (10 mL)
extractionextracted with DCM (2×20 mL)
dry with materialdried over MgSO4
filtrationfiltered
customsolvents removed in vacuo
customThe crude material was purified by silica gel chromatography
washeluting with DCM (A) and MeOH (B) (1% B, 80 g, 2 CV, 60 mL/min)

Sources & evidence

ORD record: ord-78d836517bc440c596520f27b8943d8a
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08771641B2

Reaction notes

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