The reaction of [phenylthallium(III)(18-crown-6)] diperchlorate, [PhTl(III)(18-crown-6)](ClO4)2 (1a), with phenol gives [phenyl(4'-hydroxyphenyl)thallium(III)(18-crown-6)] perchlorate (2), the phenolic OH having remained intact. The complex 1a reacts also with alkylphenols, methoxyphenols, catechol, resorcinol, and pyrogallol to give thallated products exclusively at the para position of the electron-donating group (OH or OCH3) without suffering from reduction of thallium(III). No reaction takes place with benzene, toluene, and tert-butylbenzene.
were conducted not only for 1:1 addition between thiol and vinylether but also for cyclization and step-growth polymerization between dithiol and divinyl ether. An organic acid catalyst such as p -toluenesulfonic acid (PTSA) induced the cationic thiol-ene reaction to generate the thioacetal as the Markovnikov adduct in high yield, whereas organic radical initiators such as 2,2'-azobisisobutyronitrile
Synthesis of macrocyclic and medium-ring dithia compounds using caesium thiolates
作者:Jan Buter、Richard M. Kellogg
DOI:10.1039/c39800000466
日期:——
The caesium salts of αω-dithiols react in dimethylformamide with αω-dihalides to give in good yield dithiamedium-ring and macrocycliccompounds.
αω-二硫醇的铯盐在二甲基甲酰胺中与αω-二卤化物反应,可得到高产率的二硫杂中环和大环化合物。
Alkali Cation Ligating Chains and Sheets of the Macrocycle 1, 7-Dithia-18-Crown-6 with Bridging Iodo- and Thiocyanatocuprate(I) Units
作者:M. Heller、W. S. Sheldrick
DOI:10.1002/zaac.200300157
日期:2003.8
unter ahnlichen Reaktionsbedingungen im Beisein von KI bzw. CsI isoliert werden. Beide enthalten verbruckende heptazyklische [Cu6I8]2— Einheiten, aber kristallisieren in verschiedenen Raumgruppen aus, P1 bzw. C2/m. Das Casiumatom von 3 ist signifikant aus der besten Ebene der Donoratome des Thiakronenethers verschoben. Die Umsetzung von 1, 7-DT18C6 mit CuSCN im Beisein von NaSCN liefert das schichtartige
A lithium ion battery separator includes a porous film of a polymeric chelating agent. The polymeric chelating agent includes a poly(undecylenyl-macrocycle), where the macrocycle is a chelating agent. A positive electrode includes a structure and a coating formed on a surface of the structure. The structure includes a lithium transition metal based active material, a binder, and a conductive carbon; and the coating includes a poly(undecylenyl-macrocycle), where the macrocycle is a chelating agent. The separator and/or positive electrode are suitable for use in a lithium ion battery.