Dimethylformamide → HCID 66690761, compound

HRID 592319Notes

Reaction equation

[NH2:1][C:2]1[C:11]([N+:12]([O-:14])=[O:13])=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][C:3]=1Br.[F:16][C:17]1[CH:22]=[CH:21][C:20](B(O)O)=[CH:19][CH:18]=1.C(NC(C)C)(C)C.CN(C)C=O>C([O-])(=O)C.[Pd+2].C([O-])(=O)C.[Na+].[Na+].[Na+].P(C1C=C(S([O-])(=O)=O)C=CC=1)(C1C=C(S([O-])(=O)=O)C=CC=1)C1C=C(S([O-])(=O)=O)C=CC=1.C(OCC)(=O)C.O>[NH2:1][C:2]1[C:3]([C:20]2[CH:21]=[CH:22][C:17]([F:16])=[CH:18][CH:19]=2)=[CH:4][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:10][C:11]=1[N+:12]([O-:14])=[O:13]

Participants

Conditions

Temperature: 80 °C

Procedure

To a solution of methyl 4-amino-3-bromo-5-nitrobenzoate (1.0 g, 3.64 mmol), (4-fluorophenyl)-boronic acid (0.76 g, 5.45 mmol), 3,3′,3″-phosphinidynetris (benzensulfonic acid) trisodium salt (0.18 g, 0.27 mmol), palladium(II) acetate (20.0 mg, 0.09 mmol) and diisopropylamine (0.52 mL, 3.64 mmol) were added N,N-dimethylformamide (13.6 mL) and water (4.5 mL). The mixture was heated to 80° C. After 1 h, the mixture was cooled to ambient temperature and ethyl acetate was added. The organic layer was dried over magnesium sulfate, filtered and concentrated. Purification by silica gel chromatography (100% hexanes→50% hexanes/ethyl acetate) gave the title compound (0.93 g): LC-MS [M+1]=291.2.

Workup

temperaturethe mixture was cooled to ambient temperature
dry with materialThe organic layer was dried over magnesium sulfate
filtrationfiltered
concentrationconcentrated
customPurification by silica gel chromatography (100% hexanes→50% hexanes/ethyl acetate)

Sources & evidence

ORD record: ord-507ec2e287054d22a392ae0df278dd3c
Source dataset: uspto-grants-2016_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09238647B2

Reaction notes

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