| 摘要 |
<p>Process for the carbonylation of an acetylenically unsaturated compound by reaction with carbon monoxide and a co-reactant in the presence of a catalyst system based on (a) a source of platinum; (b) a source of anions and (c) a diphosphine of the following formula (1) R1⊃P-R2-PR3R4 wherein R2 represents a covalent bridging group, R1 represents a bivalent radical that together with the phosphorus atom to which it is attached is an optionally substituted 2-phospha-tricyclo[3.3.1.1{3,7}]decyl group or a derivative thereof in which one or more of the carbon atoms are replaced by heteroatoms ('2-PA' group), and wherein R?3 and R4¿ independently represent univalent radicals of up to 20 atoms or jointly form a bivalent radical of up to 20 atoms.</p> |
