Triethylamine → 4-(5-amino-6-(5-(2-vinylphenyl)-1,3,4-oxadiazol-2-yl)pyrazin-2-yl)-N,N-dimethylbenzamide

Participants

Reaction Conditions

Reaction Steps

A solution of 4-[5-amino-6-[5-(2-iodophenyl)-1,3,4-oxadiazol-2-yl]pyrazin-2-yl]-N,N-dimethyl-benzamide (100 mg, 0.1952 mmol), potassium trifluoro-vinyl-boron (31.37 mg, 0.2342 mmol), triethyl amine (81.63 μL, 0.5857 mmol) and cyclopenta-1,4-dien-1-yl(diphenyl)phosphane; dichloromethane; dichloropalladium; iron (31.88 mg, 0.03904 mmol) in propanol (2.000 mL) was degassed and flushed with nitrogen (3×) and the resulting solution heated at 100° C. for 1 h. The reaction mixture cooled to room temperature and concentrated in vacuo. The residue was purified by column chromatography on silica eluting with ethyl acetate. Product fractions were combined and concentrated in vacuo to leave the product as a yellow solid (43.1 mg, 53% yield); 1H NMR (400.0 MHz, DMSO) d 2.97 (m, 6H), 5.51 (m, 1H), 5.98 (m, 1H), 7.54 (m, 2H), 7.58-7.70 (m, 3H), 7.78 (br s, 2H), 7.89 (m, 1H), 8.06 (m, 2H) and 9.00 (s, 1H) ppm; MS (ES+) 413.15

Provenance & Evidence