Fluoroethylene carbonate

Liquid

Liquid

Into a sealed reactor, 100 g of ethylene carbonate and 370 g of N-fluorobistrifluoromethanesulfonamide were added and stirred, and the temperature was raised to 120°C. HPLC analysis until the reaction time of ethylene carbonate was undetectable , the reaction time was 0.9 h, and the reaction was stopped. The fluoroethylene carbonate product was separated by distillation and had a purity of >99.9percent and a yield of 97.8percent.the chroma was 8 Hazen. Replace the above fluorinated reagent with 390 g of N-fluorobisbenzenesulfonamide. Under the same conditions, the complete reaction time was 1/2 h, the purity was >99.9percent, the yield was 98.2percent, and the chroma was 8 Hazen.In order to charge EC in a reactor 1, EC (m.p. 36-37), which is a colorless and odorless crystal at room temperature, must be melted into a transferable solution. 10.6 kg (120.37 mol) of EC solution were charged in a reaction compartment 8 while warm water was supplied to an external cooling water jacket of the reaction compartment 8 so as to maintain the reaction compartment 8 at 45-50. While warm water was supplied to the cooling water jacket so as to maintain the temperature of the reactor at 45-50, FExample 28; The organic layer obtained in the same manner as in the fluorination step (A) of Example 25 was subjected to treatment of the following steps.Step (D) for Removing an Organic SolventAn organic solvent (ethyl acetate) was distilled off from the obtained reaction solution by using an evaporator.Rectification step (B)The residual was subjected to rectification by using a fractionating tube, and a colorless transparent F-EC as a distillate at 74° C. (1 mmHg) was obtained.Step (C) for Treating with an AntacidTo the obtained F-EC distillate was added 100 g of amorphous silica.alumina gel, followed by stirring at room temperature for two hours.Solid Removing Step (E)The obtained F-EC subjected to treating with an antacid was filtrated to remove amorphous silica.alumina gel, and a refined F-EC was obtained at yield of 70percent at GC purity of 99.8percent.Check of coloration, analysis of anion, analysis of metal ion and measurement of pH of this refined F-EC were carried out in the same manner as in Example 25. The results are shown in Table 3.Into a sealed reactor, 100 g of ethylene carbonate and 370 g of N-fluorobistrifluoromethanesulfonamide were added and stirred, and the temperature was raised to 120C. HPLC analysis until the reaction time of ethylene carbonate was undetectable , the reaction time was 0.9 h, and the reaction was stopped. The Fluoroethylene carbonate (F1EC) is produced according to the method described in US-2006-0036102. A solution of ethylene carbonate in (1) Preparation of fluorosilicic acid:The use of phosphate fertilizer plant production process can not be out of the fluorine gas, Collected through the recovery system purification, The treated waste water was concentrated to 20 B, Fluorosilicic acid, spare;(2) After heating 100 kg of ethylene carbonate in a reaction vessel to 50 C, Join 25 kgFluorosilicic acid, While stirring, the mixture was stirred to obtain a mixed solution I;(3) The obtained mixed liquid I was heated to 65 C, slowly and slowly dropping 1.5 kg of the phase shift catalyst 18 crown 6, which was added dropwise over 60 minutes, and then 2 kg of the amine catalyst triethylamine was slowly added dropwise Which was added dropwise over 50 minutes to give a mixture of II;(4) the obtained mixture filter impurities, the filtrate heated to 65 , constant temperature reaction 3 hours, cooled to 40 , out of the full water content and filter impurities, the reaction solution, spare;(5) The obtained reaction solution is distilled and collected to obtain a finished Step 2: 100 g of ethylene carbonate and 370 g of N-fluorobistrifluoromethanesulfonamide were added to the closed reaction vessel, stirred, heated to 120 C, and sampled for HPLC analysis until the reaction time was 0.9 h when the ethylene carbonate was undetectable. The reaction was stopped, and the

Organic solvents, electronic chemicals, electrolyte additives for lithium ion batteries

Solvents (which become part of product formulation or mixture)

Apparel and footwear care products

< 25,000 lb

Molecular Weight:106.05
XLogP3:-0.3
Hydrogen Bond Acceptor Count:4
Exact Mass:106.00662212
Monoisotopic Mass:106.00662212
Topological Polar Surface Area:35.5
Heavy Atom Count:7
Complexity:92.2
Undefined Atom Stereocenter Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes