Synthetic Route of 120068-79-3, These common heterocyclic compound, 120068-79-3, name is 5-Amino-1-(2,6-dichloro-4-(trifluoromethyl)phenyl)-1H-pyrazole-3-carbonitrile, 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.
General procedure: Phenylpyrazole (0.2 mmol), arylboronic acid (0.4 mmol), NIS (0.2 mmol), [Pd] (10 mol%), NaHCO3 (0.4 mmol) and C2H5OH:H2O (3:1, 10 mL), were added to a Schlenk tube. Then the tube was charged with N2 and the reaction mixture was stirred at 80 C for 18 h. After the completion of the reaction, as monitored by TLC, the mixture was cooled and filtrated. The filtrate was extracted with ethyl acetate and washed with brine. Then the combined organic extracts were dried over Na2SO4, concentrated under vacuum and the resulting residue was purified by silica gel column chromatography to afford the desired products.
Statistics shows that 5-Amino-1-(2,6-dichloro-4-(trifluoromethyl)phenyl)-1H-pyrazole-3-carbonitrile is playing an increasingly important role. we look forward to future research findings about 120068-79-3.
Reference:
Article; Lv, Ting; Zhang, Xiao-Hong; Han, Jiang-Sheng; Zhong, Ping; Journal of Fluorine Chemistry; vol. 137; (2012); p. 44 – 49;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics