Potassium Carbonate → HCID 68497799, compound

HRID 2053109Notes

Reaction equation

[CH2:1]([O:3][C:4](=[O:21])[CH2:5][C:6]1[CH:11]=[CH:10][CH:9]=[C:8]([NH:12][C:13]([C:15]2[O:16][C:17](Br)=[CH:18][CH:19]=2)=[O:14])[CH:7]=1)[CH3:2].[CH3:22][O:23][C:24]1[CH:29]=[CH:28][C:27](B(O)O)=[CH:26][CH:25]=1.C(=O)([O-])[O-].[K+].[K+]>[Br-].C([N+](CCCC)(CCCC)CCCC)CCC.O.CC(O)=O.CC(O)=O.[Pd]>[CH2:1]([O:3][C:4](=[O:21])[CH2:5][C:6]1[CH:11]=[CH:10][CH:9]=[C:8]([NH:12][C:13]([C:15]2[O:16][C:17]([C:27]3[CH:28]=[CH:29][C:24]([O:23][CH3:22])=[CH:25][CH:26]=3)=[CH:18][CH:19]=2)=[O:14])[CH:7]=1)[CH3:2]

Participants

Conditions

Temperature: 70 °C

Procedure

To a previously degassed mixture of (3-[(5-bromo-furan-2-carbonyl)-amino]-phenyl)-acetic acid ethyl ester (11)(0.4 g), 4-methoxyphenylboronic acid (0.19 g), potassium carbonate (0.39 g) and tetra-n-butylammonium bromide (0.37 g) in water (2 ml) was added palladium II acetate (circa 10 mg). The mixture was heated to 70° C. for an hour, cooled and partitioned between ethyl acetate and water. The organic layer was separated, washed with brine, dried over sodium sulphate and evaporated in vacuo. (3-[(5-(4-Methoxy-phenyl)-furan-2-carbonyl)-amino]-phenyl)-acetic acid ethyl ester (0.4 g) was obtained following silica gel column chromatography of the residue in 2:1 ethyl acetate:petroleum ether.

Workup

temperaturecooled
custompartitioned between ethyl acetate and water
customThe organic layer was separated
washwashed with brine
dry with materialdried over sodium sulphate
customevaporated in vacuo

Sources & evidence

ORD record: ord-f3d532dba44b49849f7ef1278f3ed0b6
Source dataset: uspto-grants-2008_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07326732B2

Reaction notes

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