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Trifluoroacetic acid (TFA) is a synthetic organofluorine compound with the chemical formula CF 3 CO 2 H. It is a haloacetic acid, with all three of the acetyl group's hydrogen atoms replaced by fluorine atoms.
Nickel trifluoroacetate tetrahydrate exists, as well as two emerald green acid trifluoroacetates, a bridged trinuclear form [Ni 3 (CF 3 COO) 6 (CF 3 COOH) 6](CF 3 COOH) and a hydrated acid form [Ni 3 (CF 3 COO) 6 (CF 3 COOH) 2 (H 2 O) 4](CF 3 COOH) 2 both with triclinic crystal form. The first has density 2.205 and the second 2.124.
The syntheses of all aryl hypervalent iodine compounds start from iodobenzene.The compound can be prepared by reaction of iodobenzene with a mixture of trifluoroperacetic acid and trifluoroacetic acid in a method analogous to the synthesis of (diacetoxyiodo)benzene: [1]
Thallium(III) trifluoroacetate (TTFA) is the chemical compound with the formula Tl(O 2 CCF 3) 3. It is used as a reagent in the synthesis of some organic compounds for research purposes. Thallium is too toxic to be directly useful in medicinal chemistry.
Ethyl trifluoroacetate can be obtained by reacting 2,4,6-tris-(trifluoromethyl)-1,3,5-triazine with ethanol in the presence of hydrochloric acid. The former, in turn, can be prepared by a two-step reaction starting from trichloroacetonitrile by reaction with hydrogen chloride and fluorination of the intermediate with antimony trifluoride.
The Dallas Cowboys will have some work to do retooling their roster this offseason. "America's Team" has 25 pending free agents, nearly half a full roster's worth of players ready to hit the open ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Trifluoroacetate&oldid=161286551"This page was last edited on 30 September 2007, at 08:47 (UTC) (UTC)
Tau can become phosphorylated, meaning that phosphate groups are added to it. This is normal, but in the case of Alzheimer’s, the phosphorylation is abnormal or excessive.