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ChemicalBook CAS DataBase List 2-CHLOROHEPTAFLUOROPROPANE
76-18-6

2-CHLOROHEPTAFLUOROPROPANE synthesis

13synthesis methods
-

Yield:76-18-6 98%

Reaction Conditions:

with chlorinePhotolysis;

Steps:

5B; 5A

Another application step (Example 2) is the photo-chlorination of HFC-227 using a TQ 718Hg lamp by applying an equimolar flow (per hour) of 400 g (2,35 mol) HFC- 227 and Cl2A gas flow meter (rotameter) was continuously passed through a photoreactor made of Duran 50 glass with a gas volume of 3 liters.In two steps (Example 1 + 2), HCFC-217 was collected in a dry ice / methanol cooling trap, and then purified by distillation in a pressurized stainless steel column.In the photochemical process described, the separation yield collected in the stainless steel cylinder during distillation was 98% (theoretical value).

References:

CN110776406,2020,A Location in patent:Paragraph 0220-0224

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