[EN] CATIONIC ALKOXYAMINES AND THEIR USE IN PRODUCING NANO PARTICLES FROM NATURAL OR SYNTHETIC CLAYS<br/>[FR] ALKOXYAMINES CATIONIQUES ET UTILISATION DANS LA PRODUCTION DE NANOPARTICULES A PARTIR D'ARGILES NATURELLES OU SYNTHETIQUES
申请人:CIBA SC HOLDING AG
公开号:WO2004000809A1
公开(公告)日:2003-12-31
The instant invention relates to cationic alkoxyamines, which are useful as polymerization initiators/regulators in a controlled stable free radical polymerization process to produce intercalated and/or exfoliated nanoparticles from natural or synthetic clays. The invention also relates to improved nanocomposites produced by this process and to the use of these nanocomposite compositions as, for example, coatings, sealants, caulks, adhesives and as plastic additives.
Intramolecular Radical Carboaminoxylation of Aryl Amines
作者:Armido Studer、Marcel Hartmann、Carolin Gerleve
DOI:10.1055/s-0035-1560770
日期:——
Cyclizingradicalcarboaminoxylation of various arylamines is presented. The aryl diazonium salts in situ generated from the corresponding arylamines are reduced by tetra-n-butylammonium iodide (TBAI) to give the corresponding arylradicals. These arylradicals undergo 5-exo and 6-exo cyclization. Subsequent trapping with TEMPO or various other nitroxides provides the corresponding cyclized carboaminoxylated
介绍了各种芳胺的环化自由基羧基氧基化。由相应的芳胺原位生成的芳基重氮盐被四正丁基碘化铵 (TBAI) 还原,得到相应的芳基。这些芳基经历 5-exo 和 6-exo 环化。随后用 TEMPO 或各种其他氮氧化物捕集以中等至非常好的产率提供相应的环化羧基氨基氧化产物。