336-08-3Relevant articles and documents
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Jenkins,C.,Stephens,R.
, p. 233 (1984)
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Method for synthesizing high-purity hexafluoro-1, 3-butadiene
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Paragraph 0024; 0027; 0032; 0034; 0039, (2020/05/18)
The invention relates to a method for synthesizing high-purity hexafluoro-1, 3-butadiene, and belongs to the field of organic chemical synthesis. The method for synthesizing the hexafluoro-1, 3-butadieneI is characterized by comprising: heating hexachlorobenzene, chlorine and anhydrous hydrogen fluoride under the action of a catalyst to generate 1, 2-dichloro-3, 3, 4, 4, 5, 5, 6, 6-octafluorocyclohexene; heating the 1, 2-dichloro-3, 3, 4, 4, 5, 5, 6, 6-octafluorocyclohexene and a solvent under the action of a strong oxidant to generate 1, 6-octafluoroadipic acid; and finally, heating the 1, 6-octafluoroadipic acid and a solvent under the action of sodium hydroxide to generate sodium fluoride, water, carbon dioxide and hexafluoro-1, 3-butadiene, performing water removal and carbon dioxide removal treatment on the mixed gas to obtain the high-purity hexafluoro-1, 3-butadiene. The raw materials are cheap and convenient to obtain; the catalyst has good stability and long service life; theproduct separation and purification are simple; and industrial production is easy.
REACTIONS OF PERHALOCARBONS. PART IX. CONVERSION OF PER(POLY)FLUOROALKYL HALIDES INTO THE CORRESPONDING CARBOCYCLIC ACIDS WITH A REDOX SYSTEM
Hu, Chang-Ming,Qing, Feng-Ling,Zhang, Hong-Gen
, p. 275 - 280 (2007/10/02)
The conversion of per(poly)fluoroalkylhalides into the corresponding carbocyclic acids with a redox system-(NH4)2S2O8/HCO2Na is described.The reaction provides a convenient method for the synthesis of various per(poly)fluorocarboxylic acids under mild conditions.