Efficient Synthesis of 1,2,4-Dithiazolidine-3,5-diones [Dithiasuccinoyl-Amines] from Bis(chlorocarbonyl)disulfane Plus Bis(trimethylsilyl)amines
作者:Michael J. Barany、Robert P. Hammer、R. B. Merrifield、George Barany
DOI:10.1021/ja0455446
日期:2005.1.1
dithiasuccinoyl (Dts)-amine, serves as a readily removable amino protecting group for building blocks used in syntheses of peptides, glycopeptides, and PNA; it is also useful as a masked isocyanate and (inversely) as a sulfurization reagent for trivalent phosphorus. Bis(chlorocarbonyl)disulfane, the two-sulfur analogue of succinyl chloride, has been envisioned as a reagent for facile single-step elaboration of the
A New and Simple Synthesis of Sulfonyl Ureas from Sulfonamides and N-Alkyl-1,2,4-dithiazolidine-3,5-diones
作者:Kelly Chibale、Richard Gessner
DOI:10.1055/s-0029-1217960
日期:2009.10
A new, short, and simple synthetic approach to sulfonyl ureas is reported. The method involves the transformation of readily synthesized N-alkyl-1,2,4-dithiazolidine-3,5-diones by reaction with primary sulfonamides. Sulfonyl ureas were obtained in moderate to high yields.
Polymer compound for use in electrodematerial, electrode using the same and nonaqueous solutlion battery using the same
申请人:Uemachi Hiroshi
公开号:US20050142441A1
公开(公告)日:2005-06-30
The present invention provides a polymer compound for an electrode material permitting operation at low temperatures and attainment of large capacities, an electrode using the polymer compound, and a nonaqueous solution battery involving the electrode as the positive electrode thereof. The polymer compound includes a structure capable of intramolecularly forming at least one S—S bond in a single side chain of the repeating unit thereof. The S—S bond constitutes a part of a 4- to 6-membered heterocycle. The electrode includes as an electrode material the polymer compound including a structure capable of intramolecularly forming at least one S—S bond in the single side chain of the repeating unit thereof. The nonaqueous solution battery includes a positive electrode, an electrolyte and a negative electrode, and the positive electrode is an electrode including as an electrode material the polymer compound comprising a structure capable of forming at least one S—S bond in the single side chain of the repeating unit thereof.
Polymer compound for use in electrode material, electrode using the same and nonaqueous solution battery using the same
申请人:Sensa Corporation
公开号:US07442758B2
公开(公告)日:2008-10-28
The present invention provides a polymer compound for an electrode material permitting operation at low temperatures and attainment of large capacities, an electrode using the polymer compound, and a nonaqueous solution battery involving the electrode as the positive electrode thereof. The polymer compound includes a structure capable of intramolecularly forming at least one S—S bond in a single side chain of the repeating unit thereof. The S—S bond constitutes a part of a 4- to 6-membered heterocycle. The electrode includes as an electrode material the polymer compound including a structure capable of intramolecularly forming at least one S—S bond in the single side chain of the repeating unit thereof. The nonaqueous solution battery includes a positive electrode, an electrolyte and a negative electrode, and the positive electrode is an electrode including as an electrode material the polymer compound comprising a structure capable of forming at least one S—S bond in the single side chain of the repeating unit thereof.