20425-82-5Relevant academic research and scientific papers
Organothallium Compounds. Synthesis of Phenylthallium(III) Dicarboxylates and Diphenoxides
Gun'kin, I. F.
, p. 741 - 742 (2008/10/08)
A simple and convenient method for preparing phenylthallium(III) dicarboxylates and diphenoxides by heating phenylthallium(III) dihydroxide withcarboxylic acids and phenols in benzene has been developed.
Synthesis of bis(trifluoromethyl)phenylthallium and bis(trifluoromethyl)thallium acetate. Oxidative trifluoromethylation with bis(trifluoromethyl)thallium(III) compounds
Nair,Morrison
, p. 2816 - 2820 (2008/10/08)
The reaction of Cd(CF3)2·glyme with TlPhCl2 forms TlPh(CF3)2, which is isolated in 87% yield after 72 h. If TlPh(OAc)2 is the thallium source, TlPh(CF3)2 is generated in 2 h; however, the isolated yield is lower because acetate reacts with Cd(CF3)2·glyme, resulting in CH3COF. The interaction of Cd(CF3)2·glyme with Tl(OAc)3 produces Tl(CF3)2OAc, 46%, within 45 min. The possibility of utilizing (trifluoromethyl)thallium(III) species in oxidative trifluoromethylation reactions was screened by employing several classic low-valent metallic species as substrates. The reaction of elemental mercury was the most informative, yielding Hg(CF3)2 in 77% yield in glyme but generating a mixture of HgPh(CF3) and Hg(CF3)2 when CH2Cl2 was the solvent. These results are interpreted by postulating mercury insertion into the Tl-Ph bond, resulting in PhHgTl(CF3)2, which decomposes to generate HgPh(CF3). The formation of Hg(CF3)2 is attributed to the reaction of HgPh(CF3) with TlCF3.
