The present invention relates to a ligand and its use in a catalyst for the oligomerization of olefinic monomers, the ligand comprising the product formed by reacting
i) a compound having the general formula (III);
(R
1
)(R
2
)P—N(R
3
)—R
5
(III); and
ii) a compound of the formula X—P(R
4
), preferably at a temperature in the range of from −30 to 200° C.
本发明涉及一种
配体及其在寡聚烯烃单体催化剂中的使用,该
配体包括通过反应以下化合物形成的产物:i) 具有通式(III)的化合物;(R1)(R2)P—N(R3)—R5(III);和ii) 通式为X—P(R4)的化合物,优选温度在-30至200℃范围内。