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 stirred solution of 5,5,5-trifluoropentanoic acid (5.04 g, 32.3 mmol) inDCM (50 mL) and DMF (3 drops) was added oxalyl chloride (3.4 mL, 38.8 mmol)dropwise over 5 min and the solution was stirred until all bubbling subsided. Thereaction mixture was concentrated under reduced pressure to give pale yellow oil. To aseparate flask charged with a solution of ( 48)-4-(propan-2-yl)-I ,3-oxazolidin-2-one ( 4.I820 g, 32.4 mmol) in THF (IOO mL) at -78 oc was added n-BuLi (2.5M in hexane, 13.0 mL,32.5 mmol) dropwise via syringe over 5 min. After stirring for IO min, the above acidchloride dissolved in THF (20 mL) was added via cannula over I5 min. The reactionmixture was warmed to 0 C, and was allowed to warm to room temperature as the bathwarmed and stirred overnight. To the reaction mixture was added saturated NH4Cl, and25 then extracted with EtOAc (2x). The combined organics were washed with brine, dried(Na2S04), filtered and concentrated under reduced pressure. The crude material waspurified by flash chromatography (Teledyne ISCO CombiFlash Rf, 5% to 60% solventA/B=hexanes/EtOAc, REDISEP Si02 I20g). Concentration of appropriate fractionsprovided Intermediate S-IB (7.39 g, 86%) as a colorless oil: 1H NMR (400 MHz, CDCh) 8 ppm 4.44 (I H, dt, J=8.3I, 3.53 Hz), 4.30 (I H, t, J=8.69 Hz), 4.23 (I H, dd, J=9.06,3.02 Hz), 2.98-3.08 (2 H, m), 2.32-2.44 (I H, m, J=13.9I, 7.02, 7.02, 4.03 Hz), 2.13-2.25(2 H, m), 1.88-2.00 (2 H, m), 0.93 (3 H, d, J=7.05 Hz), 0.88 (3 H, d, J=6.80 Hz)., 17016-83-0
As the paragraph descriping shows that 17016-83-0 is playing an increasingly important role.
Reference£º
Patent; BRISTOL-MYERS SQUIBB COMPANY; GILL, Patrice; QUESNELLE, Claude A.; SAULNIER, Mark G.; GAVAI, Ashvinikumar V.; WO2014/47369; (2014); A1;,
Oxazolidine – Wikipedia
Oxazolidine | C3H7NO – PubChem