New learning discoveries about 90719-32-7

As the paragraph descriping shows that 90719-32-7 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.90719-32-7,(S)-4-Benzyloxazolidin-2-one,as a common compound, the synthetic route is as follows.

90719-32-7, In a 100L reaction kettle connected to an exhaust gas absorption device, add (S)-4-benzyl-2-oxazolidinone (10kg, 56mol), DMAP (catalyst) and xylene (50L), heated to reflux, propionyl chloride (10L, 1V) was added dropwise, and the reaction was refluxed for 2-12 hours after the dropwise addition. HPLC showed that the reaction was complete. Filter and filter cake recovered. The filtrate was concentrated, the concentrated xylene and propionyl chloride mixed solvent was recovered and applied. The concentrated oily liquid was added with 30 L of xylene and 20 L of a saturated sodium bicarbonate solution and stirred for 0.5 h. The liquid was separated, the organic phase was dried, and then used as it was. The feeding method in this step is simple and convenient. During post-processing, catalysts and solvents can be recycled, Compared with the methods described in the existing literature, the present invention has obvious advantages, very suitable for industrial production.

As the paragraph descriping shows that 90719-32-7 is playing an increasingly important role.

Reference£º
Patent; Shanghai Maosheng Kanghui Technology Co., Ltd.; Ding Hailin; Wang Tiantian; Ying Yongcheng; Jiang Xuefeng; Yu Fei; (9 pag.)CN110467530; (2019); A;,
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