A catalyst system, which comprises:
a) a source of a Group VIII metal;
b) a phosphine having an aromatic substituent which contains an imino nitrogen atom;
c) a source of protons; and
d) a tertiary amine.
催化剂系统,包括
a) 第 VIII 族
金属源;
b) 具有包含亚
氨基氮原子的芳香取代基的膦;
c) 质子源;以及
d) 一种叔胺。