Ethyl Acetate → HCID 66748419, compound

HRID 2035982Notes

Reaction equation

Cl[C:2]1[C:3]([NH2:8])=[N:4][CH:5]=[CH:6][N:7]=1.[O:9]([C:16]1[CH:21]=[CH:20][C:19](B(O)O)=[CH:18][CH:17]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.C(=O)([O-])[O-].[Na+].[Na+].CCOC(C)=O>COCCOC.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>[O:9]([C:16]1[CH:17]=[CH:18][C:19]([C:2]2[C:3]([NH2:8])=[N:4][CH:5]=[CH:6][N:7]=2)=[CH:20][CH:21]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1

Participants

Conditions

Temperature: 80 °C

Procedure

Tetrakis(triphenylphosphine)palladium(0) (0.268 g) was added to a suspension of 3-chloropyrazin-2-amine (1.00 g), 4-phenoxyphenylboronic acid (2.15 g) and sodium carbonate (1.64 g) in DME (37.5 mL) and water (7.5 mL) and the mixture was stirred at 80° C. under N2 for 4 hr. The reaction mixture was added with water and EtOAc. The organic layer was separated, washed with brine, dried over anhydrous magnesium sulfate and concentrated in vacuo. The residue was purified by column chromatography (silica gel, eluted with EtOAc in hexane) to give the title compound (1.97 g) as a white solid.

Workup

customThe organic layer was separated
washwashed with brine
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated in vacuo
customThe residue was purified by column chromatography (silica gel, eluted with EtOAc in hexane)

Sources & evidence

ORD record: ord-4c4ef8c5416240c6a4d744dba90f4941
Source dataset: uspto-grants-2013_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08575154B2

Reaction notes

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