Introduction of a new synthetic route about C8H8F3NO

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Application of 393-15-7, A common heterocyclic compound, 393-15-7, name is 4-Methoxy-3-(trifluoromethyl)aniline, molecular formula is C8H8F3NO, 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: To a solution of N-[4-[5-(3-aminophenyl)-1,2,4-oxadiazol-3-yl]-3-chlorophenyl]-3-pyridinecarboxamide (VIc)(0.2 g, 0.51 mmol, 1 equiv) in THF (20 ml) was added phosgene(15wt % in toluene, 1.7 ml, 2.55 mmol, 5.0 equiv) and the reactionmixture was refluxed under N2 for 4 h. Upon the reactioncompletion as indicated by TLC the solution was concentratedunder reduced pressure, flushed with dry toluene. To theresulting residuewas added THF (20 ml), the appropriate aniline(0.77 mmol, 1.5 equiv) and DIPEA (0.132 g, 178 ml, 1.02 mmol, 2equiv) and the reaction mixture was refluxed under N2 overnight.Upon completion of the reaction as indicated by TLC, thesolution was concentrated, and the residue was purified bychromatography to give the desired final products (25-50).

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Article; Dokla, Eman M.E.; Fang, Chun-Sheng; Abouzid, Khaled A.M.; Chen, Ching S.; European Journal of Medicinal Chemistry; vol. 182; (2019);,
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