1,2-Dichloroperfluorocyclopentane synthesis

3synthesis methods

Product Name:1,2-Dichloroperfluorocyclopentane
CAS Number:376-75-0
Molecular formula:C5Cl2F8
Molecular Weight:282.95

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Yield:-

Reaction Conditions:

with fluorine in tetrachloromethane at 0 - 30; for 5.8 h;Temperature;

Steps:

1.1; 2.1; 3.1 Example 1

(1) Take 13.8g of 1,2-dichlorocyclopentane and 50mL of carbon tetrachloride in a 100mL pressure-resistant and corrosion-resistant reactor to form a reaction system, cool to 0°C, and stir;Fluorine gas diluted with nitrogen is slowly introduced from the bottom of the reaction system at a flow rate of 100L/h, where the volume fraction of fluorine gas is 5%;Pass fluorine diluted with nitrogen at 0°C for 3.8h;After that, the temperature was raised to 30°C and reacted for 2h;A product is obtained, which is washed with a 30% sodium hydroxide solution and collected by condensation at 10° C. to obtain the target product;The target product is tested by nuclear magnetic resonance fluorine spectrum 19F NMR and gas chromatography, and it can be known that the product is 1,2-dichlorooctafluorocyclopentane.

References:

CN112645792,2021,A Location in patent:Paragraph 0029-0030; 0032-0033; 0035-0036

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References

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References