Related Products of 17061-62-0, A common heterocyclic compound, 17061-62-0, name is Bis(4-methoxybenzyl)amine, molecular formula is C16H19NO2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
To a solution of bis(4-methoxybenzyl)amine 30.1 (900 g, 3.49 mol, 1 eq) in DCM (9 L) was added TEA (634 mL, 4.55 mol, 1.3 eq), followed by dropwise addition of ethanesulfonyl chloride (399 mL, 4.19 mol, 1.2 eq). (The internal temperature was kept between 5-10 C during the addition of the ethane sulfonyl chloride). Once the addition was complete, the cooling bath was removed. After 1.5 h, TLC showed complete loss of starting material. The reaction was quenched by the addition of water (4 L) to the reaction mixture. The layers were separated and the aqueous layer was extracted with DCM (2x 2 L). The combined organic layers were washed with brine (2x 1 L), dried over Na2SO4, and concentrated in vacuo. The material thus obtained was adsorbed onto a plug of silica gel and purified by chromatography (silica gel (60-120 mesh) eluting with a gradient of 10- 80% EtOAc in hexanes) to provide the title compound 30.0 (1125 g, 3.22 mol, 92%) as a white solid. 1H-NMR (400 MHz, CDCl3) delta 7.23 (dd, J = 2.08, 6.62 Hz, 4H), 6.90 (dd, J = 2.12, 6.60 Hz, 4H), 4.29 (s, 4H), 3.83 (m, 6H), 2.92 (q, J = 7.40 Hz, 2H), 1.33 (t, J = 7.40 Hz, 3H). GC-LCMS (ESI pos. ion) m/z: = 372.2 (M+Na)+.
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; AMGEN INC.; CHEN, Yinhong; CHENG, Alan C.; DEBENEDETTO, Mikkel V.; DRANSFIELD, Paul John; HARVEY, James S.; HOUZE, Jonathan; KHAKOO, Aarif Yusuf; LAI, Su-Jen; MA, Zhihua; PATTAROPONG, Vatee; SWAMINATH, Gayathri; KREIMAN, Charles; MOEBIUS, David C.; SHARMA, Ankit; (543 pag.)WO2018/93580; (2018); A1;,
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