Potassium Carbonate → HCID 46312621, compound

HRID 1527524Notes

Reaction equation

Br[C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([N+:8]([O-:10])=[O:9])[C:3]=1[F:11].[F:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=1B(O)O.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1.O.C(Cl)Cl>[F:11][C:3]1[C:4]([N+:8]([O-:10])=[O:9])=[CH:5][CH:6]=[CH:7][C:2]=1[C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=1[F:12]

Participants

Conditions

Temperature: 100 °C

Procedure

To a solution of 1-bromo-2-fluoro-3-nitrobenzene [58534-94-4] (150 mg, 0.68 mmol) and 2-fluorophenylboronic acid [1193-03-9] (191 mg, 1.36 mmol) in dioxane (4 mL) and water (1 mL) was added potassium carbonate (236 mg, 1.70 mmol) and Pd(dppf)Cl2CH2Cl2 adduct (55.7 mg, 0.068 mmol). The solution was heated for 30 min at 100° C. under microwave irradiation. The reaction mixture was diluted with CH2Cl2 and the resulting solution was washed successively with saturated aqueous NaHCO3 solution, 1N HCl solution and brine, then dried (Phase separator) and concentrated under reduced pressure. The residue was purified by preparative HPLC (Waters Sunfire, C18-ODB, 5 μm, 30×100 mm, flow: 40 mL/min, eluent: 20-100% CH3CN/H2O/20 min, 100% CH3CN/2 min, CH3CN and H2O containing 0.1% TFA) to give after lyophilization of the purified fractions the title compound. MS (LC-MS): 236 [M+H]+; tR (HPLC conditions k): 3.81 min.

Workup

washthe resulting solution was washed successively with saturated aqueous NaHCO3 solution, 1N HCl solution and brine
customdried (Phase separator)
concentrationconcentrated under reduced pressure
customThe residue was purified by preparative HPLC (Waters Sunfire, C18-ODB, 5 μm, 30×100 mm, flow: 40 mL/min, eluent: 20-100% CH3CN/H2O/20 min, 100% CH3CN/2 min, CH3CN and H2O containing 0.1% TFA)

Sources & evidence

ORD record: ord-cbfeb6453302464b9de26daa5b2c5aab
Source dataset: uspto-grants-2015_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09085555B2

Reaction notes

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