Application of 134227-45-5, These common heterocyclic compound, 134227-45-5, name is 3,4,5-Trifluorobenzonitrile, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
To a solution of 2-(4-(1H-pyrazol-1-yl)benzyl)-7-hydroxyisoindolin-1-one (0.20 g) obtained in Reference Example 14 in DMF (2 mL) was added potassium carbonate (0.27 g), and the mixture was stirred under an argon atmosphere at room temperature for 5 min. To the reaction solution was added 3,4,5-trifluorobenzonitrile (0.11 g) in DMF (2 mL), and the mixture was stirred at 90C overnight. The reaction mixture was diluted with water and ethyl acetate. The organic layer was separated, washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by NH silica gel chromatography (hexane-ethyl acetate), and solidified with hexane-ethyl acetate to give the title compound (0.014 g). MS: [M+H]+ 443.1 1H NMR (300 MHz, CDCl3) delta 4.29 (2H, s), 4.77 (2H, s), 6.45-6.49 (1H, m), 6.83 (1H, d, J = 8.3 Hz), 7.17 (1H, d, J = 7.5 Hz), 7.34 (2H, d, J = 7.2 Hz), 7.37-7.48 (3H, m), 7.64-7.70 (2H, m), 7.72 (1H, d, J = 1.9 Hz), 7.91 (1H, d, J = 2.3 Hz).
The synthetic route of 134227-45-5 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Takeda Pharmaceutical Company Limited; SUGIMOTO, Takahiro; NAKAMURA, Minoru; SAKAMOTO, Hiroki; SUZUKI, Shinkichi; YAMADA, Masami; KAMATA, Makoto; KOJIMA, Takuto; FUJIMORI, Ikuo; SHIMOKAWA, Kenichiro; EP2921480; (2015); A1;,
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