SciELO - Scientific Electronic Library Online

 
vol.57 número2EFFICIENT ONE-POT SYNTHESIS OF BENZOXAZOLE DERIVATIVES CATALYZED BY NICKEL SUPPORTED SILICAEXTRACTIVE SPECTROPHOTOMETRIC DETERMINATION OF KETOCONAZOLE, CLOTRIMAZOLE AND FLUCONAZOLE BY ION-PAIR COMPLEX FORMATION WITH BROMOTHYMOL BLUE AND PICRIC ACID índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Journal of the Chilean Chemical Society

versión On-line ISSN 0717-9707

Resumen

ZUNIGA, CÉSAR; SIERRA, DIEGO; OYARZO, JUAN  y  KLAHN, A. HUGO. METHOXYCARBONYLATION OF STYRENE BY PALLADIUM(II) COMPLEX CONTAINING THE DIPHENYLPHOSPHINOCYRHETRENE LIGAND. J. Chil. Chem. Soc. [online]. 2012, vol.57, n.2, pp. 1101-1103. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072012000200009.

The palladium-catalyzed methoxycarbonylation of vinylarenes has been investigated for the first time using phosphinocyrhetrene [(Ti5-C5H4PPh2)Re(CO)3] a non-metallocenic organometallic ligand. The catalytic system trans-[(T5-C5H4PPh2)Re(CO)3]PdCl2(NCMe)/PPh3 (1:2 ratio), carbon monoxide and methanol, in the presence of HCl as acidic promoter, showed good catalytic activity, excellent regioselectivity to the branched products and chemoselectivity up to 94%.

Palabras llave : Methoxycarbonylation; phosphinocyrhetrene ligand; vinylarenes.

        · texto en Inglés     · pdf en Inglés