Clicking molecular hooks on silica nanoparticles to immobilize catalytically important metal complexes: the case of gold catalyst immobilization

TitleClicking molecular hooks on silica nanoparticles to immobilize catalytically important metal complexes: the case of gold catalyst immobilization
Publication TypeJournal Article
Year of Publication2010
AuthorsGanai, AKumar, Bhardwaj, R, Hotha, S, Gupta, SSen, Prasad, BLV
JournalNew Journal of Chemistry
Volume34
Issue11
Pagination2662-2670
Date PublishedAUG
Type of ArticleArticle
ISSN1144-0546
Abstract

Gold mediated reactions have emerged as one of the best choices for affecting a variety of chemical transformations with a wide range of functional group tolerance. Application of such transformations to industrial processes necessitates immobilization of the Au ions into a matrix for easy separation of the catalyst after reaction. We report the synthesis and characterization of silica nanoparticles in which Au(III) has been immobilized through a 1,2,3-triazole linkage using an alkynalated picolinic acid exploiting ``click chemistry''. The Au( III) immobilized silica nanoparticle has been thoroughly characterized using FT-IR, C-13 CP MAS NMR and XPS. The utility of these particles as an easily separable catalyst for the Hashmi phenol synthesis is also reported.

DOI10.1039/c0nj00292e
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)2.631
Divison category: 
Chemical Engineering & Process Development
Organic Chemistry
Physical and Materials Chemistry