18993-52-7Relevant academic research and scientific papers
Phase diagrams for mesogenic binary systems of lanthanum(III) laurate with lithium, sodium, and thallium(I) laurates
Bylina,Mirnaya,Volkov
, p. 764 - 766 (2008/10/09)
Phase equilibria from 20 to 350°C were studied in the binary systems of lanthanum(III) laurates with lithium, sodium, and thallium(I) laurates using differential thermal analysis (DTA) and polythermal polarized light microscopy. In all the systems, continuous or limited smectic-A liquid-crystal solutions were found to form. The temperature and concentration fields of ionic liquid crystals (LC) and glasses were determined. Copyright
Thallium(I) Carboxylate Modification of the Hunsdiecker Reaction
Cambie, Richard C.,Hayward, Rodney C.,Jurlina, Jeffrey L.,Rutledge, Peter S.,Woodgate, Paul D.
, p. 2608 - 2614 (2007/10/02)
Treatment of a thallium(I) carboxylate with 1 molar equivalent of bromine gives the corresponding thallium(III) carboxylate dibromide.High yields of primary alkyl bromides are obtained if the thallium(III) carboxylate dibromide is treated with 0.5 mol equiv. of bromine in refluxing carbon tetrachloride.Pyrolysis of the thallium(III) derivative in the absence of added bromine gives a low yield of the corresponding alkyl bromide.The use of thallium(I) carboxylates for the preparation of alkyl bromides in high yields is limited to the salts of primary carboxylic acids.A simple procedure for the preparation of alkyl bromides from carboxylic acids using thallium(I) carbonate has been developed.
