Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 6306-61-2, name is N-(2-Chloroethyl)propan-2-amine hydrochloride, A new synthetic method of this compound is introduced below., COA of Formula: C5H13Cl2N
KOH (932 mg; 14.1 mmol) was dissolved in THF (7ml) and H20 (distilled, 0.17 ml). Intermediate 7 (341 mg; 0.95 mmol), then tetrabutylammonium bromide (76.5 mg, 0.24 mmol) were added to the mixture and stirred at room temperature for 5 minutes. The reaction mixture was heated at 50C for 1 hour. Then A/-(2-chloroethyl)-2-propanamine, hydrochloride (225 mg, 1.4 mmol) was added and the reaction mixture was stirred at 50C for 18 hours. A/-(2-chloroethyl)-2-propanamine, hydrochloride (76mg, 0.48 mmol) was added and the reaction mixture was stirred at 50C for 5 hours. Water was added and the reaction mixture was extracted with EtOAc. The organic layer was washed with brine, dried over MgS04, filtered and evaporated to dryness. The crude product was purified by chromatography over silica gel (5muetaeta, mobile phase :Gradient from 0.2% NH4OH, 98% DCM, 2% MeOH to 0.8% NH4OH, 92% DCM, 8% MeOH). The desired product fraction was collected and the solvent was evaporated. The residue was dissolved in MeOH, 2 drops of HCI (37%) were added and the reaction mixture was stirred at room temperature for 2 minutes. The mixture was evaporated, taken up with CH3CN and crystallized from CH3CN to afford 41 mg of compound 1 (9%) as a chlorohydrate
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:
Patent; ASTEX THERAPEUTICS LIMITED; BERDINI, Valerio; ANGIBAUD, Patrick Rene; WOODHEAD, Steven John; SAXTY, Gordon; WO2013/61074; (2013); A1;,
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