The oxidative addition of PhSe-X molecules (X = Cl or Br) to Pt(II) complexes of formula [PtR(R')(N,N-chelate)] [R, R'= Me, CH(CO2Me)(2), CH(CO2Me)(CN); N,N-chelate=4,4'-(tert-butyl)(2)-2,2'-bipyridine] is described. The reaction quantitatively affords octahedral products [PtR(R')(SePh)(X)(N,N-chelate)], and is highly selective, since only the isomers with -X and -SePh in trans position are obtained. When R = R' = CH(CO2Me)(2) or R = R'= CH(CO2Me)(CN) an irreversible reductive elimination takes place in solution, giving rise to Pt(II) compounds [PtR(X)(N,N-chelate)] and organoselenium molecules PhSeR'. (C) 2003 Elsevier B.V. All rights reserved.
Oxidative addition of Se-X bonds and reductive elimination of Se-C bonds in platinum compounds containing hydrocarbyl ligands
ROVIELLO, Giuseppina;
2003-01-01
Abstract
The oxidative addition of PhSe-X molecules (X = Cl or Br) to Pt(II) complexes of formula [PtR(R')(N,N-chelate)] [R, R'= Me, CH(CO2Me)(2), CH(CO2Me)(CN); N,N-chelate=4,4'-(tert-butyl)(2)-2,2'-bipyridine] is described. The reaction quantitatively affords octahedral products [PtR(R')(SePh)(X)(N,N-chelate)], and is highly selective, since only the isomers with -X and -SePh in trans position are obtained. When R = R' = CH(CO2Me)(2) or R = R'= CH(CO2Me)(CN) an irreversible reductive elimination takes place in solution, giving rise to Pt(II) compounds [PtR(X)(N,N-chelate)] and organoselenium molecules PhSeR'. (C) 2003 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
