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. 6136-93-2, name is 2,2-Diethoxyacetonitrile, A new synthetic method of this compound is introduced below., Safety of 2,2-Diethoxyacetonitrile
In a 10-L reactor 2, 2-diethoxyacetonitrile (1.00 kg, 7.74 mol, 1.0 eq. ) was mixed with (NH 4) 2S (48%aqueous solution, 1.41 kg, 9.29 mol, 1.2 eq. ) in methanol (6.0 L) at room temperature. The internal temperature increased to 33 and then dropped back to r.t. After stirring overnight, the reaction mixture was concentrated under vacuum and the residue was taken up in ethyl acetate (5 L) and washed with saturated NaHCO 3 solution (4 × 1.0 L) . The aqueous layer was back-extracted with ethyl acetate (5 × 1.0 L) . The organic phases were combined and washed with brine (3 L) , dried over anhydrous Na 2SO 4and concentrated. The resulting solid was collected by vacuum filtration and washed with petroleum ether. The filtrate was concentrated and triturated with petroleum ether to yield a few crops of white or light yellow solid. All crops were combined to give 1.1 kg of desired product (87%yield) . 1H NMR (500 MHz, CDCl 3) delta 7.81 (d, J = 71.1 Hz, 2H) , 5.03 (s, 1H) , 3.73 (dq, J = 9.4, 7.1 Hz, 2H) , 3.64 (dq, J = 9.4, 7.0 Hz, 2H) , 1.25 (t, J = 7.1 Hz, 6H) .
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; HANGZHOU DAC BIOTECH CO. LTD; ZHAO, Robert Yongxin; YANG, Qingliang; HUANG, Yuanyuan; ZHAO, Linyao; GAI, Shun; YE, Hangbo; LEI, Jun; XU, Yifang; CAO, Mingjun; GUO, Huihui; JIA, Junxiang; TONG, Qianqian; LI, Wenjun; ZHOU, Xiaomai; XIE, Hongsheng; BAI, Lu; CAI, Xiang; ZHUO, Xiaotao; ZHANG, Xiuzheng; ZHENG, Jun; (424 pag.)WO2019/127607; (2019); A1;,
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