Tetrabutylammonium Fluoride → 3-(4-((2-Chloro-4-(trifluoromethyl)phenyl)ethynyl)-3-methoxyphenyl)-1-(2,6-dichlorophenyl)-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 1-(2,6-dichlorophenyl)-3-(4-iodo-3-methoxyphenyl)-1H-1,2,4-triazol-5(4H)-one (Intermediate-45, 0.070 g, 0.15 mmol), 2-chloro-1-ethynyl-4-(trifluoromethyl)benzene (Intermediate-25, 0.046 g, 0.22 mmol), TBAF (0.080 g, 0.30 mmol), bis(triphenylphosphine)palladium(II) chloride (0.020 g, 0.022 mmol) and DMSO (3.0 mL) at 80° C. to afford 0.020 g of the desired product. 1H NMR (300 MHz, DMSO d6): δ 3.95 (s, 3H), 7.50-7.53 (m, 2H), 7.56-7.79 (m, 5H), 7.88 (d, J=8.4 Hz, 1H), 8.05 (s, 1H), 12.04 (s, 1H); MS (m/z): 538.07 (M+).

Provenance & Evidence