Lead(IV) Trifluoroacetate

Abstract

[16656-82-9] C8F12O8Pb (MW 659.13) InChI = 1S/4C2HF3O2.Pb/c4*3-2(4,5)1(6)7;/h4*(H,6,7);/q;;;;+4/p-4 InChIKey = HBKZSKSQIPBOLP-UHFFFAOYSA-J (functionalization of saturated hydrocarbons;2 trifluoroacetoxylation, plumbation, and dimerization of substituted benzene derivatives;3, 4 oxidation of alkenic compounds5) Alternate Name: lead tetrakis(trifluoroacetate); LTTFA. Physical Data: too hygroscopic for mp determination. Solubility: reacts with aliphatic and aromatic hydrocarbons (such as heptane, benzene, toluene, etc.), but is stable and sol in trifluoroacetic acid (TFA), C6F6, CH2Cl2, and MeNO2. Form Supplied in: commercially available in the form of white crystals moistened with TFA. Drying: for some reactions, TFA must be completely removed; this is achieved by drying the reagent in vacuo (over KOH and P2O5) for several days. Analysis of Reagent Purity: the oxidizing capability and purity of the reagent can be determined iodometrically. Preparative Method: can be prepared in situ from Lead(IV) Acetate and Trifluoroacetic Acid. Handling, Storage, and Precautions: the solid reagent is very reactive and hygroscopic, and must be stored in the dark, in the absence of moisture, and below 10 °C.