Sodium Carbonate → HCID 57636499, compound

HRID 2110276Notes

Reaction equation

[F:1][C:2]1[C:9]([F:10])=[C:8](OS(C(F)(F)F)(=O)=O)[CH:7]=[CH:6][C:3]=1[C:4]#[N:5].[C:19]([O:23][C:24]([NH:26][C:27]1[CH:32]=[CH:31][C:30](B(O)O)=[CH:29][CH:28]=1)=[O:25])([CH3:22])([CH3:21])[CH3:20].C(=O)([O-])[O-].[Na+].[Na+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:1][C:2]1[C:9]([F:10])=[C:8]([C:30]2[CH:29]=[CH:28][C:27]([NH:26][C:24]([O:23][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:25])=[CH:32][CH:31]=2)[CH:7]=[CH:6][C:3]=1[C:4]#[N:5]

Participants

Conditions

Temperature: 90 °C

Procedure

A solution of 2,3-difluoro-4-trifluoromethylsulfonyloxybenzonitrile in 60 mL of dioxane is admixed under an argon atmosphere with 1.24 g of 4-(tert-butyloxycarbonylamino)phenylboronic acid. A solution of 1.03 g of sodium carbonate in 15 mL of water is added, followed by 0.48 g of tetrakistriphenylphosphinepalladium. The reaction mixture is stirred at 90° C. for 3 hours and then poured into 80 mL of distilled water. Following extraction with ethyl acetate and then washing with saturated sodium chloride solution, the organic phase is concentrated under reduced pressure, to give 0.8 g of 2,3-difluoro-4-(4-tert-butoxycarbonylaminophenyl)benzonitrile, whose characteristics are as follows:

Workup

extractionextraction with ethyl acetate
washwashing with saturated sodium chloride solution
concentrationthe organic phase is concentrated under reduced pressure

Sources & evidence

ORD record: ord-314da4aae86f488394720ccb057efae7
Source dataset: uspto-grants-2009_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07517902B2

Reaction notes

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