Sodium Carbonate → Methyl 5-cyclopropyl-6-(4-fluorophenyl)-2-isopropoxynicotinate

HRID 530996Notes

Reaction equation

HRID 530996 reaction equation
Br[C:2]1[C:3]([C:16]2[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=2)=[N:4][C:5]([O:12][CH:13]([CH3:15])[CH3:14])=[C:6]([CH:11]=1)[C:7]([O:9][CH3:10])=[O:8].[CH:23]1(B(O)O)[CH2:25][CH2:24]1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C(OC)=CC=CC=2OC)CCCCC1.C(=O)([O-])[O-].[Na+].[Na+]>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O.C1(C)C=CC=CC=1>[CH:23]1([C:2]2[C:3]([C:16]3[CH:21]=[CH:20][C:19]([F:22])=[CH:18][CH:17]=3)=[N:4][C:5]([O:12][CH:13]([CH3:15])[CH3:14])=[C:6]([CH:11]=2)[C:7]([O:9][CH3:10])=[O:8])[CH2:25][CH2:24]1

Participants

8

Reactant 4

HCID 10340Sodium CarbonateHCID 2760897Cyclopropylboronic acidHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 117992295Methyl 5-bromo-6-(4-fluorophenyl)-2-isopropoxynicotinate

Product 1

HCID 117992411Methyl 5-cyclopropyl-6-(4-fluorophenyl)-2-isopropoxynicotinateYield 97.4%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

Tris(dibenzylideneacetone)dipalladium(0) (635 mg) was added to a mixture of methyl 5-bromo-6-(4-fluorophenyl)-2-isopropoxynicotinate (3.65 g), cyclopropylboronic acid (2.55 g), dicyclohexyl(2′,6′-dimethoxybiphenyl-2-yl)phosphine (610 mg), a 2 M aqueous sodium carbonate solution (14.9 mL), and toluene (25 mL), and the resultant mixture was stirred at 100° C. for 2 hours in an argon atmosphere. The reaction mixture was allowed to cool to room temperature and poured to water, followed by extraction with ethyl acetate. The obtained organic layer was washed with saturated saline and dried over anhydrous magnesium sulfate, and then, the solvent was distilled off under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate) to obtain the title compound (3.18 g).

Workup

  1. extractionfollowed by extraction with ethyl acetate
  2. washThe obtained organic layer was washed with saturated saline
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate)

Sources & evidence

ORD record
ord-d03b8384deeb4e67a34041864b0d6e53
Source dataset
uspto-grants-2016_05
Patent number
US09353108B2

Reaction notes

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