Ethanol → 4-(3'-Chloro-2-fluoro-6-methoxy-biphenyl-3-ylmethyl)-phenylamine

HRID 1632030Notes

Reaction equation

C(O)C.[Cl:4][C:5]1[CH:6]=[C:7]([C:11]2[C:16]([O:17][CH3:18])=[CH:15][CH:14]=[C:13]([CH2:19][C:20]3[CH:25]=[CH:24][C:23]([N+:26]([O-])=O)=[CH:22][CH:21]=3)[C:12]=2[F:29])[CH:8]=[CH:9][CH:10]=1>[Fe].O>[Cl:4][C:5]1[CH:6]=[C:7]([C:11]2[C:16]([O:17][CH3:18])=[CH:15][CH:14]=[C:13]([CH2:19][C:20]3[CH:21]=[CH:22][C:23]([NH2:26])=[CH:24][CH:25]=3)[C:12]=2[F:29])[CH:8]=[CH:9][CH:10]=1

Participants

Conditions

Temperature: 85 °C

Procedure

In an 18 mL vial equipped with a stir bar was placed iron powder (179 mg, 3.20 mmol), ethanol (5.0 mL) and water (1.2 mL). The mixture was heated to 85° C. in an oil bath and then the above product 3′-Chloro-2-fluoro-6-methoxy-3-(4-nitro-benzyl)-biphenyl (6) (340 mg, 0.914 mmol) was added and the reaction was continued at 85° C. for 2 hours. The reaction mixture was cooled to room temperature and filtered through Celite. To the filtrate was added water (50 mL) and extractions were performed with ethyl acetate (2×60 mL). The organic portions were combined, washed with brine (50 mL), dried (MgSO4) and concentrated to produce 245 mg of 4-(3′-chloro-2-fluoro-6-methoxy-biphenyl-3-ylmethyl)-phenylamine (I-35) as a yellow, viscous oil in 79% yield. MS (APCI+): 342.0 (M+1).

Workup

customIn an 18 mL vial equipped with a stir bar
temperatureThe reaction mixture was cooled to room temperature
filtrationfiltered through Celite
additionTo the filtrate was added
extractionwater (50 mL) and extractions
washwashed with brine (50 mL)
dry with materialdried (MgSO4)
concentrationconcentrated

Sources & evidence

ORD record: ord-8dbc857c3542494696f8b7de4e912620
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08791267B2

Reaction notes

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