《Reactions of sodium pentafluorophenolate with substituted pentafluorobenzenes》 was published in Journal of Organic Chemistry in 1967. These research results belong to De Pasquale, Ralph J.; Tamborski, Christ. Reference of Ethyl 2,3,4,5,6-pentafluorobenzoate The article mentions the following:
NaOC6F5 was prepared by proton exchange using NaOMeMeOH. This salt was freed from residual MeOH and treated with a series of substituted pentafluorobenzenes (C6F5R, R = CF3, CO2Et, C6F5, Br, Cl, F, H) using HCONMe2 as solvent. The major product arising from displacement of F para to the substituent was a fluorinated diphenyl ether. For some substituents (Cl, Br, H), displacement of o-F was competitive but minor. Mixtures of triphenyl ethers were occasionally observed. The relative reaction rates of these pentafluorobenzenes with NaOC6F5 were measured in HCONMe2 at 106°. These values when plotted against Hammett’s substituent constant σρ gave a reasonably straight line. From the slope, the σρ of a pentafluorophenyl group can be estimated as 0.4. The halide ion mobilities were qual. measured as F > Cl or Br which is consistent with a 2-step addition-elimination mechanism where the first step is ratedetg. 15 references. In the experimental materials used by the author, we found Ethyl 2,3,4,5,6-pentafluorobenzoate(cas: 4522-93-4Reference of Ethyl 2,3,4,5,6-pentafluorobenzoate)
Ethyl 2,3,4,5,6-pentafluorobenzoate(cas: 4522-93-4) belongs to esters. They are important in biology, being one of the main classes of lipids and comprising the bulk of animal fats and vegetable oils. They perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market.Reference of Ethyl 2,3,4,5,6-pentafluorobenzoate
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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics