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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 431992Erstellt: 25. Oktober 2026

Dimethylformamide → 2-(3-Cyanophenyl)-4-(pyridin-2-yl)-1,3-thiazole

https://huagongshe.com/reaction/431992

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktDimethylformamideHCID 6228—
Edukt2-(3-Iodophenyl)-4-(pyridin-2-yl)-1,3-thiazoleHCID 10133344—
KatalysatorZinc cyanide (Zn(CN)2)HCID 11186—
KatalysatorHCID 178418397HCID 178418397—
LösungsmittelTolueneHCID 1140—
Produkt2-(3-Cyanophenyl)-4-(pyridin-2-yl)-1,3-thiazoleHCID 996512130%

Reaktionsbedingungen

Temperatur80 °C

Reaktionsschritte

A mixture of 2-(3-iodophenyl)-4-(pyridin-2-yl)-1,3-thiazole (130 mg, 0.36 mmol), zinc cyanide (117 mg, 1.0 mmol) and Pd(PPh3)4 (10 mg, 0.009 mmol) in N,N-dimethylformamide (2 mL) was heated overnight at 80° C. The mixture was cooled and diluted with toluene (5 mL). The organic solution was washed with 2N NH40H (2×10 mL). The mixture was then extracted with ethyl acetate and the organic extract was washed with brine. The organic solution was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. Silica gel chromatography afforded 28 mg (30%) of 2-(3-cyanophenyl)-4-(pyridin-2-yl)-1,3-thiazole: 1H-NMR (CDCl3), δ ppm: 8.65 (d, 1H), 8.38 (s, 1H), 8.25 (m, 2H), 8.15 (s, 1H), 7.85 (m, 1H), 7.72 (m, 1H), 7.6 (t, 1H), 7.28 (m, 1H). GC/EI-MS gave m/z 263 (M+)

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS06660753B2
Quelldatensatzuspto-grants-2003_12
ORD IDord-d3da7b3ca5af4a0b9cf0ad951557bfbd
Quellennotizuspto-grants-2003_12