In an article, published in an article,once mentioned the application of 37830-90-3,molecular formula is , is a conventional compound. this article was the specific content is as follows. 37830-90-3
Example 1The feeding substance than the molar amount of the: DMDO: sulfonyl chloride to 1 : 1.3. The organic solvent is dichloromethane, the quality of the organic solvent with DMDO volume ratio is 1:7. Solid free radical scavenging agent is methyl hydroquinone, DMDO the quality of the amount of 1percent.To is provided with a magnetic stirring, constant pressure dropping funnel, reflux condensation tube, thermometer and is provided with a tail gas absorption device 500 ml flask to three in 350 ml dichloromethane, 50gDMDO, under stirring backflow state, slowly dropping 77g sulfonyl chloride, dropping time is approximately 2.5h, heat preservation after dropping 2h, rotary evaporation to remove the solvent. Furthermore, added to the bottoms of 0.5g methyl hydroquinone, for 90 ¡ãC conditions, stirring rearrangement 5h, obtaining a reaction crude. Analysis of the purity of crude 92.33percent, the crude in 2mmHg the vacuum degree of the vacuum distillation, to obtain the target product 52.8g, to yield 81.1percent, purity of 97.87percent.
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Reference£º
Patent; Six Anke Rui Da New Materials Co.,Ltd.; Bao, Yuanzhi; Weng, Shibing; Zhao, Zhongyao; (6 pag.)CN105348249; (2016); A;,
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