Adding a certain compound to certain chemical reactions, such as: 717843-56-6, 3-Bromo-2-methoxy-5-methylpyridine, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound, Application In Synthesis of 3-Bromo-2-methoxy-5-methylpyridine, blongs to pyridine-derivatives compound. Application In Synthesis of 3-Bromo-2-methoxy-5-methylpyridine
Step b: 2-Methoxy-5-methyl-3-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2- yl)pyridine; 3-Bromo-2-methoxy-5-methylpyridine (540 mg, 2.7 mmol), 4,4,4′,4′,5,5,5′,5′- octamethyl-2,2′-bi(l,3,2-dioxaborolane) (810 mg, 3.2 mmol), and Pd(dppf)Cl2 (110 mg, 0.13 mmol) were added to a dry flask and placed under N2. Potassium acetate (800 mg, 8.1 mmol) was weighed directly into the flask. The flask was then evacuated and back filled with N2. Anhydrous N,N-dimethylformamide (DMF) (15 mL) was added and the reaction was heated at 80 0C in an oil bath overnight. The reaction mixture was evaporated to dryness. The residue was dissolved in ethyl acetate (20 mL) and washed with water (20 mL). The organics were dried over sodium sulfate and evaporated to dryness. The resulting material was purified by silica gel chromatography eluting with 0-100% ethyl acetate in hexane to yield 2-methoxy-5- methyl-3-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)pyridine (450 mg, 67%). ESI-MS m/z calc. 249.1, found 168.3 (MW-C6H1O+1)+. Retention time 0.27 minutes. 1H nuMR (400 MHz, CDCl3) delta 8.03 (m, IH), 7.80 (m, IH), 3.94 (s, 3H), 2.22 (s, 3H), 1.36 (s, 12H).
The synthetic route of 717843-56-6 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; VERTEX PHARMACEUTICALS INCORPORATED; WO2008/141119; (2008); A2;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem