Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/49349
Title: Heterogeneous Catalysis in Protodecarboxylation and C-C Bond Formation
Authors: TOY XIU YI
Keywords: heterogeneous, catalysis, carboxylic acids, decarboxylation, cross-coupling, biphenyls
Issue Date: 16-Aug-2013
Source: TOY XIU YI (2013-08-16). Heterogeneous Catalysis in Protodecarboxylation and C-C Bond Formation. ScholarBank@NUS Repository.
Abstract: Ullmann reaction and decarboxylative cross-coupling reactions are green alternatives for the formation of C-C bonds between aromatic compounds. These methods do not require preformed organometallic reagents which improve its atom efficiency. Since heterogeneous catalysts offer many advantages over homogeneous catalysts such as easy separation and recovery, the aim of this study is to develop and improve heterogeneous catalysts for Ullmann reaction and decarboxylative cross-coupling. We have developed a Pd(OAc)2-PEG-EG catalytic system for Ullmann coupling of bromobenzene. Also, we presented the use of alumina supported Ag and Cu catalysts for protodecarboxylation of ortho-substituted aromatic benzoic acids. Finally, the monometallic Ag/Al2O3 and Cu/Al2O3 catalysts, and bimetallic Cu.Pd/Al2O3 catalysts were used in the study of decarboxylative cross-coupling of potassium salt of 2-nitrobenzoic acid and iodobenzene.
URI: http://scholarbank.nus.edu.sg/handle/10635/49349
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Toy Xiu Yi_Ph D _Part 1.pdf359.86 kBAdobe PDF

OPEN

NoneView/Download
Toy Xiu Yi_Ph D _Part 2.pdf27.44 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

147
checked on Dec 11, 2017

Download(s)

239
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.