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

HRID 506613

Reaktionsgleichung

[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]

Komponenten

Reaktionsbedingungen

Temperatur: 100 °C

Versuchsvorschrift

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.

Aufarbeitung

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)

Quellen und Nachweise

ORD-Eintrag: ord-d00a481a1541422caa85cec29afc0672
Quelldatensatz: uspto-grants-2010_08
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07786110B2

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