A “one-step” sulfonic acid PMO as a recyclable acid catalyst

  title={A “one-step” sulfonic acid PMO as a recyclable acid catalyst},
  author={Mayda I Lopez and D Adolfo Esquivel and C{\'e}sar Jim{\'e}nez-Sanchidri{\'a}n and Francisco J Romero-Salguero and Pascal Van Der Voort},
Abstract The synthesis and catalytic activity of a new sulfonic acid-functionalized periodic mesoporous organosilica (PMO) obtained by an in situ oxidation process have been reported. This material was prepared by co-condensation of a homemade thiol-functionalized bis-silane precursor (EtO) 3 Si-R-Si(OEt) 3 (R = CH 2 CHSH) with 1,2-bis(triethoxysilyl)ethane (BTEE) in the presence of a nonionic triblock co-polymer. Thiol groups were oxidized either in situ during the formation of the… CONTINUE READING