1.
Chem Commun (Camb)
; 53(55): 7816-7819, 2017 Jul 06.
Artigo
em Inglês
| MEDLINE
| ID: mdl-28653058
RESUMO
Using a surface science approach, the selectivity in the Ullmann cross-coupling of aryl halides on Cu(111) has been understood and controlled. The binding strength of the reactants and repulsion between them dictates which organometallic intermediates form, and hence the product distribution. Cross coupling can be maximized at low reactant concentrations.
2.
Chem Commun (Camb)
; 50(70): 10035-7, 2014 Sep 11.
Artigo
em Inglês
| MEDLINE
| ID: mdl-25051314
RESUMO
The Ullmann coupling of bromobenzene to biphenyl on Co nanoparticles proceeds below room temperature via an intermediate in which phenyl groups are bound directly to metallic Co. A similar surface-bound benzyl intermediate is observed for coupling of benzylbromide to bibenzyl on Co.