Novel rhodium-containing catalyst.

摘要

In hydroformylation comprising allowing an ethylenically unsaturated compound to react with carbon monoxide and hydrogen in the presence of a catalyst to convert it into a corresponding aldehyde, the catalyst is a rhodium-containing catalyst comprising; (a) a rhodium compound; (b) an organic phosphorus compound having at least one tertiary amine residual group and at least one tertiary phosphorus residual group, having the ability of coordination to said rhodium compound; and optionally (c) an acidic compound with which at least part of the tertiary amine residual group of the organic phosphorus compound is converted into ammonium ions.