As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 139152-08-2 name is 4,5-Dichlorophthalonitrile, This compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below. 139152-08-2
4,5-Dichlorophthalonitrile (1.0g, 5.3mmol) and 13 5-hydroxy-2-methylpyridine (1.4g, 12.4mmol) were dissolved in 15mL of dry 14 N,N-dimethylformamide at 80C under N2. 15 Potassium carbonate (4.5g, 32.6mmol) was added to the reaction solution in 5 portions every 5min. The reaction mixture was heated for 3h at 80C, then cooled to room temperature, and poured into 100mL of 16 ice-water. The title compound was extracted for the reaction liquid using 50mL of 17 CHCl3 at 3 times. After filtration under vacuum, the 18 title compound was obtained as a white powder. Yield, 1.8g (97% (based on 4,5-Dichlorophthalonitrile)). Anal. Calc. for C20H14N4O2: C; 70.17, H; 4.12, N; 16.37. Found: C; 69.93, H; 4.21, N; 16.08%. HR-MS (ESI-TOF): Found 343.1190m/z. [M+H]+ (calcd. for C20H14N4O2 343.1191). 1H NMR (CD2Cl2): delta=8.31 (s, 2H, Ar-H), 7.34 (d, 2H, J=8.4Hz, Ar-H), 7.26 (d, 2H, J=8.4Hz, Ar-H), 7.23 (s, 2H, Ar-H), and 2.57ppm (s, 6H, CH3).
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 4,5-Dichlorophthalonitrile, and friends who are interested can also refer to it.
Reference:
Article; Fujishiro, Rei; Sonoyama, Hayato; Ide, Yuki; Fujimura, Takuya; Sasai, Ryo; Nagai, Atsushi; Mori, Shigeki; Kaufman, Nichole E.M.; Zhou, Zehua; Vicente, M. Graca H.; Ikeue, Takahisa; Journal of Inorganic Biochemistry; vol. 192; (2019); p. 7 – 16;,
Nitrile – Wikipedia,
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