2,6-Di-tert-butyl-4-methylphenol → HCID 21865309, compound

Participants

Reaction Steps

To a solution of trifluoromethanesulfonic acid 2-[6-(quinolin-7-yloxy)-pyrimidin-4-yl]-5-trifluoromethyl-phenyl ester, (Example 192(a)), (600 mg, 1.2 mmol) in dioxane (6.0 mL) was added vinyltributylstannate (370 μL, 1.6 mmol, Fluka), LiCl (150 mg, 3.5 mmol, Aldrich), Pd(PPh3)4 (27 mg, 0.02 mmol, Strem) and a few crystals of 2,6-di-tert-butyl-4-methylphenol (Aldrich). The reaction mixture was stirred at reflux for 21 h. The resulting mixture was allowed to cool to room temperature and concentrated in vacuum. Purification by silica gel chromatography (1% MeOH/CH2Cl2) provided the title compound as a white amorphous solid. MS (ESI, pos. ion) m/z: 394 (M+1).

Provenance & Evidence