Tetrabutylammonium Fluoride → 3-(2-Chloro-6-fluorophenyl)-1-(4-((2,5-dichlorophenyl)ethynyl)-3-methoxyphenyl)-1H-1,2,4-triazol-5(4H)-one

Participants

Reaction Steps

The title compound was prepared according to the procedure described in Example-3 using 3-(2-chloro-6-fluorophenyl)-1-(4-iodo-3-methoxyphenyl)-1H-1,2,4-triazol-5(4H)-one (Intermediate-32, 0.050 g, 0.11 mmol), 1,4-dichloro-2-ethynylbenzene (Intermediate-23, 0.029 g, 0.16 mmol), TBAF (0.101 g, 0.33 mmol), bis(triphenylphosphine)palladium(IT) chloride (0.005 g, 0.04 mmol) and DMSO (3.0 mL) at 80° C. to afford 0.010 g of the desired product. 1H NMR (300 MHz, DMSO d6): δ 3.89 (s, 3H), 7.49-7.56 (m, 3H), 7.59-7.73 (m, 6H), 12.90 (br s, 1H); MS (m/z): 487.95 (M+H+).

Provenance & Evidence