Ammonium Chloride → (3-ethylphenyl)(2-methyl-5-phenyl-2H-1,2,4-triazol-3-yl)methanol

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a solution of 1-methyl-3-phenyl-1H-1,2,4-triazole (284 mg, 1.8 mmol, see J. Chem. Soc., 1954, 3319-3322) in THF (112 mL) at −78° C. was added BuLi (1.15 mL, 1.6 M in hexanes, 1.8 mmol). The reaction was stirred for 5 minutes at -78° C. and a solution of intermediate 370.1 (200 mg, 1.5 mmol) in THF (2 mL) was added dropwise. The mixture was warmed to ambient temperature over 2 h. Ammonium chloride (80 mg) was added to the mixture and it was concentrated. Purification of the crude material afforded 350 mg of intermediate 370.2 as a white solid. LCMS 294.2 (M+H)+.

Herkunft & Nachweise