2-Dicyclohexylphosphino-2',6'-diisopropoxybiphenyl → HCID 86711956, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-(1-(3-bromobenzyl)-5-methyl-1H-1,2,4-triazol-3-yl)-3-(4-(trifluoromethoxy)phenyl)-isoxazole (48 mg, 0.1 mmol) in toluene (5 ml) were added 4-(methylsulfonyl)-piperidine (33 mg, 0.2 mmol), Ruphos (4.8 mg, 0.01 mmol), Pd2(dba)3 (9.2 mg, 0.01 mmol) and t-BuONa (19.2 mg, 0.2 mmol). The mixture was stirred under Ar atmosphere at 106° C. for 16 h, then cooled to RT, diluted with H2O (20 mL), and extracted with EtOAc (3×10 mL). The combined organic layers were washed with H2O (10 mL) and brine (10 mL), dried over Na2SO4, filtered and concentrated under reduced pressure; the residue was purified by silica gel chromatography (Petroleum ether:EtOAc=1:1) to give the title compound as a white solid; MS (ES+) C26H26F3N5O4S requires: 561. found: 562[M+H]+; 1H NMR (500 MHz, CDCl3) δ 7.91 (d, J=6.8 Hz, 2H), 7.33 (d, J=6.4 Hz, 2H), 7.25 (m, 1H), 7.10 (s, 1H), 6.89 (d, J=6.4 Hz, 1H), 6.80 (s, 1H), 6.72 (d, J=6.0 Hz, 1H), 5.34 (s, 2H), 3.82 (bd, J=10.0 Hz, 2H), 2.96 (m, 1H), 2.86 (s, 3H), 2.77 (m, 2H), 2.50 (s, 3H), 2.24 (bd, J=10.0 Hz, 2H), 1.95 (m, 2H).

Provenance & Evidence