If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it, 3973-18-0, Propynol ethoxylate.
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. 3973-18-0, name is Propynol ethoxylate. A new synthetic method of this compound is introduced below., Quality Control of Propynol ethoxylate
Production of 2-((4-methylcyclohexa-l,4-dienyl)methoxy)ethyl 4-methylbenzenesulfonate and 2-((5 -methylcyclohexa- 1 ,4-dienyl)methoxy)ethyl 4-methylbenzenesulfonate[Chem. 24] 100.00 g (0.59 mol) of the diene alcohol obtained in Example 36, 90.29 g (0.89 mol) of Iriethylamine, and 73.20 g (0.89 mol) of 1-methylimidazole were dissolved in 400 ml of toluene. In an ice bath, a toluene solution (400 ml) of 130.33 g (0.68 mol) of p-toluenesulfonyl chloride was slowly added dropwise to the solution, and then the resulting mixture was stirred for one hour at room temperature. Water was added thereto, and the organic layer was separated. The obtained organic layer was washed sequentially with 15% sulfuric acid, water, and a saturated aqueous sodium hydrogen carbonate. The solvent was distilled off under reduced pressure, and thus 188.01 g of the desired tosylate was obtained as a colorless oil. Yield 98.1% (l,4-type/l,5-type = 91/9).1.67 (s, 3H), 2.44 (s, 3H), 2.58 (brs, 4H), 3.58 – 3.55 (m, 2H), 3.84 (s, 2H), 4.18 – 4.14 (m, 2H), 5.41 – 5.40 (m, 1H), 5.64 – 5.63 (m, 1H), 7.33 (d, J = 8.3 Hz, lH), 7.80 (d, J = 8.3 Hz, 1H);HRMS (ESI):Calculated value: [M+H]+ 323.1312Found value: 323.1325
If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it, 3973-18-0, Propynol ethoxylate.
Reference:
Patent; TAKASAGO INTERNATIONAL CORPORATION; TOUGE, Taichiro; NARA, Hideki; HAKAMADA, Tomohiko; WO2012/26201; (2012); A1;,
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