Bromine catalyzed conversion of S-tert-butyl groups into versatile and, for self-assembly processes accessible, acetyl-protected thiols
作者:Alfred Błaszczyk、Mark Elbing、Marcel Mayor
DOI:10.1039/b408677e
日期:——
The facile and efficient conversion of a tert-butyl protecting group to an acetyl protecting group for thiols by catalytic amounts of bromine in acetyl chloride and the presence of acetic acid has been developed. The fairly mild reaction conditions are of particular interest for new protecting group strategies for sulfur functionalised target structures.
CHROMAN - SPIROCYCLIC PIPERIDINE AMIDES AS MODULATORS OF ION CHANNELS
申请人:Vertex Pharmaceuticals Incorporated
公开号:EP2675812B1
公开(公告)日:2017-08-30
Stoichiometric Functionalization of Gold Nanoparticles in Solution through a Free Radical Polymerization Approach
作者:Christian Krüger、Seema Agarwal、Andreas Greiner
DOI:10.1021/ja0763495
日期:2008.3.1
A new simple concept for the stoichiametrical funclionalization of nanoparticles based on free radical polymerization of vinyl protected nanoparticles is presented. To demonstrate this concept 2-bis(4-vinylphenyl)disulfane was synthesized and used in the synthesis of gold nanoparticles leading to 4-vinylthiophenol functionalized nanoparticles. Simple free radical polymerization of these particles initiated by 4,4'-azobis-(4-cyanopentanoic acid) delivered nanoparticles with a single carboxyl group. These monofunctionalized gold nanoparticles were utilized for chemical preparation of gold nanoparticle dippers as well as for construction of gold nanoparticle arrays via binding to polyallylamine.