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15989-99-8

2 3 4 5 6-PENTAFLUOROBENZOIC ANHYDRIDE synthesis

5synthesis methods
-

Yield:15989-99-8 98%

Reaction Conditions:

at 128; for 0.0833333 h;Inert atmosphere;

Steps:

1.1 1 Preparation of pentafluorobenzoic anhydride

40 g of pentafluorobenzoic acid and 120 g of acetic anhydride were heated to 128° C. under nitrogen protection, refluxed for 5 minutes, then cooled to room temperature under nitrogen protection, filtered, and the filter cake was rinsed with 20 g of acetic acid and air-dried to obtain 37 g of a white product. GC analysis of purity 99%, yield 98%.

References:

CN107827708,2018,A Location in patent:Paragraph 0036; 0037; 0038

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