Dimethylformamide → 5-(5-{5-fluoro-2-(methyloxy)-3-[(E)-2-(methyloxy)ethenyl]phenyl}-1,3,4-thiadiazol-2-yl)-2-(2-methylpropyl)benzonitrile

Participants

Reaction Conditions

Reaction Steps

To a suspension of 2-bromo-5-[4-[(1-methylethyl)oxy]-3-(trifluoromethyl)phenyl]-1,3,4-thiadiazole (D26) (400 mg), 2-{5-fluoro-2-(methyloxy)-3-[(E)-2-(methyloxy)ethenyl]phenyl}-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (459 mg) and tripotassium phosphate (659 mg) in N,N-dimethylformamide (DMF) (8 mL) and water (2 mL) under nitrogen was added Pd(Ph3P)4 (71.7 mg). The reaction vessel was sealed and heated under microwave at 120° C. for 10 min. Water was added. The reaction mixture was extracted with EA for 3 times, the combined organic layers were washed with brine, dried over anhydrous sodium sulfate, the dried solution was concentrated, and purified by column chromatography to afford 5-(5-{5-fluoro-2-(methyloxy)-3-[(E)-2-(methyloxy)ethenyl]phenyl}-1,3,4-thiadiazol-2-yl)-2-(2-methylpropyl)benzonitrile (D36) (140 mg) as a yellow solid. MS (ES): C23H22FN3O2S requires 423. found 424.1 (M+H+).

Provenance & Evidence