4-Methylthiazole → 2'-Fluoro-4'-methyl-5-thiazol-5-yl-biphenyl-3-carboxylic acid methyl ester

HRID 1888900Notes

Reaction equation

[CH3:1][O:2][C:3]([C:5]1[CH:6]=[C:7]([C:12]2[CH:17]=[CH:16][C:15]([CH3:18])=[CH:14][C:13]=2[F:19])[CH:8]=[C:9](I)[CH:10]=1)=[O:4].C[C:21]1[N:22]=[CH:23][S:24][CH:25]=1.CC(O[K])=O>CC(N(C)C)=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>[CH3:1][O:2][C:3]([C:5]1[CH:6]=[C:7]([C:12]2[CH:17]=[CH:16][C:15]([CH3:18])=[CH:14][C:13]=2[F:19])[CH:8]=[C:9]([C:25]2[S:24][CH:23]=[N:22][CH:21]=2)[CH:10]=1)=[O:4]

Participants

Conditions

Temperature: 100 °C

Procedure

To a stirred solution of 2′-fluoro-5-iodo-4′-methyl-biphenyl-3-carboxylic acid methyl ester (50 mg, 0.135 mmol) and 4-methylthiazole (57.4 mg, 0.675 mmol) in 10 ml of dimethylacetamide was added Pd(PPh3)4 (8 mg, 0.00675 mmol) and CH3COOK (20 mg, 0.2 mmol). The reaction mixture was heated to 100° C. and stirred overnight. After cooling down to room temperature, the mixture was filtered through celite and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography (hexanes/EtOAc=1:5) to afford 30 mg (68%) of 2′-fluoro-4′-methyl-5-thiazol-5-yl-biphenyl-3-carboxylic acid methyl ester, MS (M+H)=328.

Workup

temperatureAfter cooling down to room temperature
filtrationthe mixture was filtered through celite
concentrationthe filtrate was concentrated under reduced pressure
customThe residue was purified by column chromatography (hexanes/EtOAc=1:5)

Sources & evidence

ORD record: ord-889ede39ef974bea9c6a74f88d635e92
Source dataset: uspto-grants-2013_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08501933B2

Reaction notes

Loading…