Category: 189278-27-1

Electric Literature of 189278-27-1, 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. 189278-27-1, name is 2-Bromo-6-(trifluoromethyl)pyridine, molecular formula is C6H3BrF3N, The 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.

Example 30 (3aR,4R,6aS)-2-[6-(trifluoromethyl)pyridin-2-yl]octahydrocyclopenta[c]pyrrol-4-ol (3aR,4R,6aS)-Octahydrocyclopenta[c]pyrrol-4-ol (1.65 g, 12.97 mmol) from Example 29, 2-bromo-6-(trifluoromethyl)pyridine (3.66 g, 16.22 mmol) and triethylamine (7.23 mL, 51.9 mmol) were combined in ethanol (7.23 mL). The reaction was heated at 80 C. for 24 hours and the solvent was concentrated in vacuo. The resulting residue was purified by silica gel chromatography using 0-40% ethyl acetate/hexane as eluent to give the title compound and the title compound of Example 31: 1H NMR (500 MHz, pyridine-d5) delta ppm 7.47 (t, J=7.9, 1H), 6.94 (d, J=7.2, 1H), 6.53 (d, J=8.6, 1H), 6.38 (d, J=4.1, 1H), 4.47-4.38 (m, 1H), 4.12 (dd, J=11.0, 4.3, 1H), 3.70-3.63 (m, 1H), 3.53 (t, J=10.0, 1H), 3.38 (dd, J=10.4, 4.6, 1H), 2.80-2.73 (m, 1H), 2.72-2.64 (m, 1H), 1.97-1.74 (m, 3H), 1.64-1.56 (m, 1H); MS (ESI+) m/z 273 (M+H)+.

According to the analysis of related databases, 189278-27-1, the application of this compound in the production field has become more and more popular.

Reference:
Patent; ABBOTT LABORATORIES; US2011/294854; (2011); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Application of 189278-27-1, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 189278-27-1, name is 2-Bromo-6-(trifluoromethyl)pyridine. This compound has unique chemical properties. The synthetic route is as follows.

To a solution of 2-bromo-6-(trifluoromethyl)pyridine (200 mg, 0.885 mmol) in a solvent mixture of toluene (1.5 ml)/water (1.5 ml)/ethanol (0.7 ml) was added 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)pyridine (200 mg, 0.738 mmol), cesium carbonate (601 mg, 1.844 mmol) and 1,1′-bis(diphenylphosphino)ferrocenepalladium(II) dichloride (30.3 mg, 0.037 mmol). The reaction mixture was heated in a benchtop microwave at 120 C. for 30 min. The reaction mixture was diluted with water and extracted with EtOAc. The organics were dried with MgSO4, filtered and then concentrated in vacuo. The residue was purified by column chromatography, eluting with 0-50% acetone in hexanes to afford 2-(1-(pyridin-3-yl)-1H-pyrazol-4-yl)-6-(trifluoromethyl)pyridine as a white solid (82 mg, 38.3%): mp 130-131 C.; 1H NMR (400 MHz, acetone-d6) delta 9.24 (d, J=2.4 Hz, 1H), 9.13 (d, J=0.5 Hz, 1H), 8.60 (dd, J=4.7, 1.4 Hz, 1H), 8.44 (s, 1H), 8.35 (ddd, J=8.3, 2.7, 1.5 Hz, 1H), 8.12 (qd, J=8.3, 4.7 Hz, 2H), 7.72 (dd, J=7.1, 1.5 Hz, 1H), 7.59 (ddd, J=8.3, 4.7, 0.7 Hz, 1H); EIMS m/z 290.

According to the analysis of related databases, 189278-27-1, the application of this compound in the production field has become more and more popular.

Reference:
Patent; DOW AGROSCIENCES LLC; Lowe, Christian T.; Trullinger, Tony K.; Hunter, Ricky; US2012/220453; (2012); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem