Pyrazinecarbonyl chloride → N-[4-(3,5-dimethylphenyl)-5-(4-pyridyl)-1,3-thiazol-2-yl]pyrazinecarboxamide

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Reaktionsgleichung

[CH3:1][C:2]1[CH:3]=[C:4]([C:9]2[N:10]=[C:11]([NH2:20])[S:12][C:13]=2[C:14]2[CH:19]=[CH:18][N:17]=[CH:16][CH:15]=2)[CH:5]=[C:6]([CH3:8])[CH:7]=1.[N:21]1[CH:26]=[CH:25][N:24]=[CH:23][C:22]=1[C:27](Cl)=[O:28].C(=O)([O-])O.[Na+]>CN(C)C1C=CN=CC=1.CN(C)C(=O)C>[CH3:1][C:2]1[CH:3]=[C:4]([C:9]2[N:10]=[C:11]([NH:20][C:27]([C:22]3[CH:23]=[N:24][CH:25]=[CH:26][N:21]=3)=[O:28])[S:12][C:13]=2[C:14]2[CH:19]=[CH:18][N:17]=[CH:16][CH:15]=2)[CH:5]=[C:6]([CH3:8])[CH:7]=1

Komponenten

Reaktionsbedingungen

Temperatur: 70 °C

Versuchsvorschrift

To a solution of [4-(3,5-dimethylphenyl)-5-(4-pyridyl)-1,3-thiazol-2-yl]amine (0.50 g, 1.8 mmol) and 4-dimethylaminopyridine (0.06 g, 0.53 mmol) in N,N-dimethylacetamide (5 mL) was added pyrazinecarbonyl chloride (0.44 g, 2.7 mmol) and the mixture was stirred at 70° C. for 14 h. To the reaction mixture was poured aqueous sodium hydrogencarbonate solution and the precipitated solid was collected by filtration. The obtained solid was washed with water and dried. The crude crystals were recrystallized from ethanol to give the title compound (0.41 g, yield 59%).

Aufarbeitung

filtrationthe precipitated solid was collected by filtration
washThe obtained solid was washed with water
customdried
customThe crude crystals were recrystallized from ethanol

Quellen und Nachweise

ORD-Eintrag: ord-2fcf625647a74dc29bf2aa5728294458
Quelldatensatz: uspto-grants-2005_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US06962933B1

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