Adding a certain compound to certain chemical reactions, such as: 18368-64-4, 2-Chloro-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, Formula: C6H6ClN, blongs to pyridine-derivatives compound. Formula: C6H6ClN
Triphenylphosphine (430 mg, 1 .64 mmol) was added to a solution of 2-chloro-5- fluorophenol (200 mg, 1 .37 mmol) in tetrahydrofuran (2 mL). The reaction mixture was cooled to 0 °C, and (c/s)-methyl 3-hydroxycyclobutanecarboxylate (213 mg, 1 .64 mmol) was added, followed by DIAD (0.32 mL, 1 .6 mmol). After 10 min, the reaction mixture was warmed to room temperature, stirred for 3 days, and diluted with water and EtOAc. The mixture was partitioned, and the aqueous layer was extracted with EtOAc. The organic layer was washed with water, dried over sodium sulfate, filtered, and concentrated. The residue was purified on silica gel eluting with a 10percent-50percent EtOAc-heptane gradient to give the title compound (264 mg, 64percent) as a yellow oil. 1H NMR (400 MHz, CDCI3) delta 2.50-2.61 (m, 2 H), 2.78 (ddd, J = 14, 7, 4 Hz, 2 H), 3.18-3.28 (m, 1 H), 3.76 (s, 3 H), 4.91 (quin, J = 7 Hz, 1 H), 6.49 (dd, J = 10, 3 Hz, 1 H), 6.63 (td, J = 8, 3 Hz, 1 H), 7.30 (dd, J = 9, 6 Hz, 1 H); LC-MS (LC-ES) M+H = 259, 261 (CI pattern).
At the same time, in my other blogs, there are other synthetic methods of this type of compound,18368-64-4, 2-Chloro-5-methylpyridine, and friends who are interested can also refer to it.
Reference:
Patent; GLAXOSMITHKLINE INTELLECTUAL PROPERTY DEVELOPMENT LIMITED; DEATON, David Norman; GUO, Yu; HANCOCK, Ashley Paul; SCHULTE, Christie; SHEARER, Barry George; SMITH, Emilie Despagnet; STEWART, Eugene L.; THOMSON, Stephen Andrew; (556 pag.)WO2018/69863; (2018); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem