17016-83-0, (S)-4-Isopropyl-2-oxazolidinone is a oxazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
To a solution of (S) -4-isopropyloxazolidin-2-one (5.00 g, 38.7 mmol, 1.0 eq. ) in anhydrous THF (200 mL) at -78 was added n-BuLi (2.5 M in hexanes, 17.0 mL, 1.2 eq. ) in 30 min under N2. The mixture was stirred at -78 for 1 h, and then propionyl chloride (4.0 mL, 42.58 mmol, 1.1 eq. ) was added dropwise. After the mixture was stirred at -78 for another 1 h, TLC analysis indicated the reaction completed. Saturated ammonium chloride solution (250 mL) was added and extracted with EtOAc (3 ¡Á 100 mL) . The combined organic layers were washed with 1N NaOH solution (200 mL) and brine (300 mL) , dried over anhydrous Na2SO4, filtered, concentrated and purified by column chromatography (7: 1 hexanes/EtOAc) to give compound 114 as a colorless oil (6.36 g, 89%yield) . MS ESI m/z calcd for C9H16NO3[M+H]+186.10, found 186.10.1H NMR (400 MHz, CDCl3) delta 4.48 -4.39 (m, 1H) , 4.27 (t, J = 8.7 Hz, 1H) , 4.21 (dd, J = 9.1, 3.1 Hz, 1H) , 3.06 -2.82 (m, 2H) , 2.38 (dtd, J = 14.0, 7.0, 4.0 Hz, 1H) , 1.17 (t, J = 7.4 Hz, 3H) , 0.90 (dd, J = 17.0, 7.0 Hz, 6H) .
17016-83-0, 17016-83-0 (S)-4-Isopropyl-2-oxazolidinone 7157133, aoxazolidine compound, is more and more widely used in various fields.
Reference£º
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;,
Oxazolidine – Wikipedia
Oxazolidine | C3H7NO – PubChem