Dimethylformamide → HCID 69426563, compound

Participants

Reaction Conditions

Reaction Steps

2-Bromo-6-chloro-4-(trifluoromethyl)-quinolineamine (5, 476 mg, 1.46 mmol) was dissolved in anhydrous DMF (5 mL) under N2. Zn(CN)2 (103 mg, 0.88 mmol) was added and the solution was degassed with a stream of N2. Pd(PPh3)4 (34 mg, 0.029 mmol) was added and the solution was degassed again and then heated to 140° C. The reaction was complete by TLC after 80 min. The reaction mixture was cooled to rt and diluted with EtOAc (100 mL), The organic phase was washed with H2O (2×20 mL) and brine (1×20 mL) then dried over MgSO4. Concentration and chromatography (SiO2, 40 g, 10% EtOAc-hexane) provided the desired material 6 as a yellow crystalline solid (202 mg, 51%). mp 188° C. Rf 0.34 (10% Ethyl acetate-hexane). 1H NMR (CDCl3, 300 MHz) δ 7.95 (d, J=8.8 Hz, 1H), 7.94 (m, 1H), 7.52 (dd, J=2.2, 8.8 Hz, 1H), 5.34 (br s, 2H, NH2); 19F NMR (CDCl3, 300 MHz) δ−54.51; 13C NMR (CDCl3, 75 MHz) δ140.21, 139.00, 138.39, 132.27, 128.25, 126.65, 126.10, 122.98, 121.90, 121.84, 114.43; IR (KBr) υmax 3485, 3410, 3386, 2230, 1650, 1639, 1574, 1492, 1430, 1352, 1322, 1221, 1158, 1130, 1121, 1095, 975, 822 cm−1.

Provenance & Evidence