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. 35418-07-6, name is Methyl 3-(4-aminophenyl)propanoate, A new synthetic method of this compound is introduced below., SDS of cas: 35418-07-6
Example 13; Propionic Acid Ester Analogue (18) of Am-580; A solution of the compound 17 (39 mg, 0.168 mmol) in benzene (2.5 ml) was added with thionyl chloride (122 mul, 1.67 mmol) and DMF (1 drop), and the mixture was refluxed by heating for 1 hour. Volatile substances were evaporated, then the residue was added with benzene (3 ml), the solvent was evaporated again, and the residue was dried under reduced pressure. A solution of this residue in dichloromethane (1 ml) was cooled on ice, and added with a solution of methyl 3-(4-aminophenyl)propionate (36 mg, 0.201 mmol) and triethylamine (117 mul, 0.841 mmol) in dichloromethane (2 ml), and the mixture was stirred at 0 C. for 30 minutes, and at room temperature for further 16 hours. The reaction mixture was added with saturated aqueous sodium hydrogencarbonate, and extracted with ethyl acetate. The organic layer was washed with water, and dried over anhydrous sodium sulfate, and then the solvent was evaporated. The residue was purified by silica gel column chromatography (eluted with chloroform), and the residue was recrystallized to obtain the title compound 18 (55 mg, 83%) together with the recovered compound 17 (6 mg, 15%).Compound 18: colorless needles, melting point: 118.5-119.5 C. (dichloromethane-hexane)MS (m/z): 393 (M+, 15), 249 (4), 215 (100), 172 (5), 157 (10), 91 (6), 43 (9)IR (KBr) cm-1: 1731, 16381H-NMR (CDCl3) delta: 1.29 (6H, s), 1.30 (6H, s), 1.70 (4H, s), 2.61 (2H, t, J=8 Hz), 2.92 (2H, t, J=8 Hz), 3.66 (3H, s), 7.17 (2H, A2B2, J=8.5 Hz), 7.36 (1H, d, J=8 Hz), 7.55 (1H, dd, J=8, 2 Hz), 7.56 (2H, A2B2, J=8.5 Hz), 7.86 (1H, d, J=2 Hz), 7.99 (1H, br s, CONH)
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; RESEARCH FOUNDATION ITSUU LABORATORY; US2010/286427; (2010); A1;,
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