| 摘要 |
Process for the preparation of an acetal by hydroformylation of an ethylenically unsaturated organic compound, the ethylenically unsaturated organic compound being contacted with carbon monoxide, hydrogen, an alkanol and a metal-containing catalyst system, the catalyst system comprises: a) platinum or a platinum compound, b) a bidentate ligand with the general formula: R<1>R<2>-M-R-M-R<3>R<4>, where M represents a phosphorus, antimony or arsenic atom, R represents a divalent bridging group having at least three atoms and where R<1>, R<2>, R<3> and R<4> represent the same or different hydrocarbon groups, which may or may not be substituted, c) and a Bronsted acid with a pKa < 2 and/or a Lewis acid. |
