Boron tribromide → 3-methyl-4-[4-methyl-5-(4-pentylbicyclo[2.2.2]oct-1-yl)-4H-1,2,4-triazol-3-yl]phenol

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Reaction Steps

Boron tribromide (1M/CH2Cl2, 3.21 mL, 3.21 mmol) was added to a solution of 3-(4-methoxy-2-methylphenyl)4-methyl-5-(4-pentylbicyclo[2.2.2]oct-1-yl)-4H-1,2,4-triazole (2-F) (410 mg, 1.07 mmol) in methylene chloride (6 mL) at 0° C. The mixture was stirred at room temperature for 2 h. The solution was washed with water, 10% NaHCO3, dried (MgSO4) and concentrated in vacuo. The residue was purified by preparative TLC (silica gel, MeOH:methylene chloride, 5:95) to provide 3-methyl-4-[4-methyl-5-(4-pentylbicyclo[2.2.2]oct-1-yl)4H-1,2,4-triazol-3-yl]phenol (2-G). Mass spectrum: 393 (M+1); 1H NMR (500 MHz, CDCl3): δ 0.93 (t, 3H); 1.27 (m, 8H); 1.56 (m, 6H); 1.97 (s 3H); 2.12 (m, 6H); 3.50 (s, 3H); 6.65 (m, 2H); 6.98 (d, 1H) ppm.

Provenance & Evidence