Formation of palladium metal active sites on styrene–divinylbenzene copolymer catalyst by alcohol reduction at room temperature

Direct Oxidative Esterification of Aldehyde with Alcohol to Ester over Pd/Styrene-Divinyl Benzene Copolymer Catalyst

“…However, the problem may be overcome by the use of a hydrophobic catalyst. With respect to the application of hydrophobic styrene-divinyl benzene copolymer (SDB) used in the reaction involving water, there are many reports in the open literature. − However, it is mainly used in the selective oxidation of alcohols and aldehydes or olefins to desired compounds. There is an opportunity for new environmentally friendly processes for the production of esters.…”

A Selective and Benign Synthesis of Functionalized Benzalacetones via Mizoroki–Heck Reaction Using Aryldiazonium Salts

“…It is well known that PdA C H T U N G T R E N N U N G (OAc) 2 is reduced to Pd(0) by alcoholic solvents. [18] Therefore, the reduction of PdA C H T U N G T R E N N U N G (OAc) 2 to Pd(0) species by the solvent methanol is considered the initial step of this reaction and is also taken into account by other authors. [13e,20d] This assumption is supported by control experiments, in which PdA C H T U N G T R E N N U N G (OAc) 2 was reduced by formic acid or by pre-reduction of PdA C H T U N G T R E N N U N G (OAc) 2 by methanol to Pd(0).…”

Partially hydrophobized silica supported Pd catalyst for hydrogenation reactions in aqueous media

“…Partial oxidation reactions in gas or liquid phase could benefit from the use of hydrophobic catalysts for reasons of better selectivity and higher catalyst stability. Yen and Chou [8] prepared Pd/styrene-divinylbenzene copolymer by reduction of palladium acetate with methanol at room temperature. The catalyst was found active, selective and stable during partial oxidation of propylene to acrolein and acrylic acid, but only in the presence of steam in the feed [9].…”