Lithium trifluoroacetate

Temperature, solvents of high polarity and Lewis acids favor acetylation over trifluoroacetylation, while adding lithium trifluoroacetate increases the amount of trifluoroacetylated product.148 On the basis of these facts and of a comparison of the reactivity of this with other electrophilic reagents, a mechanism has been proposed,148... 

A 1,4-acetoxytrifluoroacetoxylation of 1,3-dienes was obtained in the presence of trifluoroacetic acid and lithium trifluoroacetate [60], For cyclic dienes the relative yield of unsymmetrical 1,4-addition product is high (94-95% or better). For example, palladium-catalyzed oxidation of cyclohexa-1,3-diene under these conditions gave 37 in 67-75% yield [Eq.(37)]. 

Lithium tri-scc-butylborohydride, 348,490 Lithium triethylborohydride, 348-349 Lithium triethylmethoxide, 349-350 Lithium trifluoroacetate, 103... 

Although it is not appreciably soluble in trifiuoroacetic acid, it dissolves in the presence of sodium, potassium or, preferably, lithium trifluoroacetate, and is useful in this form for one-electron oxidations of aromatic hydrocarbons. 

Infrared examinations in solution also indicated the extent of ionic dissociation of alkali metal salts of organic acids in various organic solvents, and the structures of the associates in solution, could also be determined. Regis et al [Re 74, 75], for instance, demonstrated the presence of the following two (asymmetric and symmetric) complexes in addition to the free ligand ion in an acetonitrile solution of lithium trifluoroacetate ... 

Miyauchi Y, Hojo M, Moriyama H, hnai Y (1992) Conductometric identification of triple-ion and quadrupole formation by the coordination forces from lithium trifluoroacetate and lithium pentafluor-opropionate in protophobic aprotic solvents. J Chem Soc Faraday trans 88 3175-3182. doi 10.1039/ FT9928803175... 

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