Process for preparing...

Details Process for preparing... Process for preparing...

C - Chemistry, Metallurgy

07

C

260/509.3, 260/6

C07C 201/06 (2006.01) C07C 205/07 (2006.01) C07C 205/11 (2006.01) C07C 205/58 (2006.01)

Patent

CA 1302430

HOE 86/F 168 Abstract of the disclosure: 2,2-Bis-(3-nitrophenyl)-hexafluoropropane is prepared by oxidation of 2,2-bis-(4-methylphenyl)-hexafluoropropane to 2,2-bis-(4-carboxyphenyl)-hexafluoropropane, nitration of this compound to 2,2-bis-(4-carboxy-3-nitro- phenyl)-hexafluoropropane and decarboxylation of the last-mentioned compound. The process leads to 2,2-bis-(3-nitrophenyl)-hexafluoro- propane, free of isomers, in an industrially simple manner and with the use of common chemicals. The compound is a valuable intermediate in the polymer field. The 2,2-bis-(4-carboxy-3-nitrophenyl)-hexafluoropropane occurring as an intermediate in the process is novel.

542744

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