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Chemical Structure| 853994-48-6 Chemical Structure| 853994-48-6

Structure of 853994-48-6

Chemical Structure| 853994-48-6

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Product Details of [ 853994-48-6 ]

CAS No. :853994-48-6
Formula : C8H13NO7S2
M.W : 299.32
SMILES Code : O=S([O-])(O)=O.O=S(O)(CCC[N+]1=CC=CC=C1)=O

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Application In Synthesis of [ 853994-48-6 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 853994-48-6 ]

[ 853994-48-6 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 15471-17-7 ]
  • [ 853994-48-6 ]
YieldReaction ConditionsOperation in experiment
With sulfuric acid; at 40℃; for 72.0h; Take 0.1 mol pyridine in four flask at constant pressure dropping funnel equimolar 1,3-propane sultone, at 40 C, N 2 protection conditions, stirring 24 h, to give a white precipitate intermediate , washed three times with ethyl acetate and dried in vacuo 8 h, to give a white intermediate: 0.1 mol 1- (3- sulfopropyl) pyridinium inner salt of PPS. Under ice-cooling, to the PPS of concentrated sulfuric acid was added dropwise an equimolar, to warm slowly After the addition the reaction to 40 C 72 h, until a white solid was dissolved, washed with diethyl ether and dried in vacuo to obtain the ionic liquid [PSpy] HSO 4. Prepared as described above was weighed [PSpy] HSO 4 Catalyst 5 mmol, glycerol 1.0 mol, stirred and heated to 250 C, the reaction carried out batchwise, react sufficiently until no distillate produced, sampled for gas chromatographic analysis. Analysis concluded that glycerin conversion was 100% and the yield of acrolein of 48.7%.
With sulfuric acid; at 100℃; for 0.5h; Please refer to FIG. 2 and FIG. 3, which are a view showing reactions of fabricating the IL; and a view showing transacylation and stratification. As shown in the figures, on using the present invention, for fabricating an acidic IL as a catalyst, pyridine or 1-butyl-imidazole (N-butyl imidazole) is reacted with 1,3-propane sultone at 40 C. for 24 hrs to obtain a white solid of a zwitterionic compound. After being purified with ether and dried through vacuuming, the white solid of the zwitterionic compound of R+-(CH2)3-SO3- is obtained, where R is pyridine or 1-butyl-imidazole (i.e. n-propane sulfonic acid pyridinium (PSPy) or pyridinium propyl sulfobetaine (PPS)). An appropriate amount of the white solid is obtained in a round bottom flask to be added with a considerable number of moles of sulfuric acid for reaction with stirring at 100 C. for 0.5 hr. A transparent viscous liquid is gradually formed, which is an acidic IL of [R+-(CH2)3-SO3H][HSO4] obtained through the reaction shown in FIG. 2.
With sulfuric acid; In water; at 60℃; for 2.0h; Preparation of modified acidic functional ionic liquid [C3SO3HPy] HSO4 · 0.2MgCl21, (124.6 g, 1.0 mol) l, 3-propanesultone was dissolved in 500 mL of toluene with rapid stirring,After dissolving, the system was placed in an ice-water bath; slowly (79.1 g, 1.0 mol) of pyridine was added dropwise and the reaction was allowed to react in an ice bath for 2 hAfter that, go to room temperature for 2 h;2, after the end of the reaction, the resulting white solid was filtered under reduced pressure and washed three times with anhydrous ether; the solid was placed in realEmpty oven, vacuum drying at 80 C for 24 h. To obtain a C3SO3-Py solid;3. The C3SO3-Py solid (204.2 g, 1.0 mol) was dissolved in 500 ml of distilled water and slowly added dropwise at room temperature(100.1 g, 1.0 mol) of 98% concentrated sulfuric acid, and then the system was heated to 60 C for 2 h;4. After completion of the reaction, (18.9 g, 0.2 mol) of magnesium chloride was added to the resulting solution, and the reaction was stirred at 60 Cminute. After completion of the reaction, most of the water was removed by steaming at 70 C under reduced pressure, and the mixture was further charged in a vacuum oven at 80 CAfter drying for 24 h, 321.1 g of [C3SO3HPy] HSO4 · 0.2MgCl2 viscous liquid was obtained.
 

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