In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 702641-04-1, name is 2-Iodo-5-(trifluoromethyl)benzoic acid belongs to iodides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 702641-04-1
Intermediate 37a and 37b: 2-(2H-1,2,3-Triazol-2-yl)-5-(trifluoromethyl)benzoic acid (Intermediate 37a) and 2-(1H-1,2,3-Triazol-1-yl)-5-(trifluoromethyl)benzoic acid (Intermediate 37b) To a solution of 2H-1,2,3-triazole (CAS number 288-36-8; 1.0 g, 10.86 mmol) in DMF (4 ml) at 0-10 C. was added cesium carbonate (4.71 g, 14.49 mmol), copper (I) iodide (68 mg, 0.36 mmol), trans-1-N,2-N-dimethylcyclohexane-1,2-diamine (200 mg, 1.44 mmol) and 2-iodo-5-(trifluoromethyl)benzoic acid (CAS number 702641-04-1; 2.28 g, 7.24 mmol). The reaction was subjected to microwave irradiation at 120 C. for 15 minutes and was then partitioned between ethyl acetate (2×100 ml) and water (50 ml). The aqueous layer was acidified with HCl (aq, 2M) to give pH 2 and the organics were extracted with ethyl acetate (3×100 ml). The combined organics were washed with brine, dried over sodium sulfate and concentrated in vacuo. The resulting residue was purified by column chromatography (silica, 0-3% methanol/DCM) to afford 2-(2H-1,2,3-triazol-2-yl)-5-(trifluoromethyl)benzoic acid (Intermediate 37a; also commercially available CAS number 1384066-81-2). The mixed fractions were further purified by column chromatography (silica, 0-3% methanol/DCM) followed by reverse phase preparative HPLC (eluted with acetonitrile/water containing 0.1% formic acid) to afford 2-(1H-1,2,3-triazol-1-yl)-5-(trifluoromethyl)benzoic acid (Intermediate 37b). Intermediate 37a 1H NMR (400 MHz, DMSO) delta ppm 8.07-8.08 (m, 3H), 8.20 (s, 2H), 13.57 (bs, 1H) MS ES+: 258 Intermediate 37b 1H NMR (400 MHz, DMSO) delta ppm 7.90-7.97 (m, 2H), 8.16-8.21 (m, 2H), 8.65 (s, 1H), 13.65 (bs, 1H) MS ES+: 258
The synthetic route of 702641-04-1 has been constantly updated, and we look forward to future research findings.