The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a chromium based catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl mono-oxazoline compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to
1
-hexene,
1
-octene, or mixtures of
1
-hexene and
1
-octene.
本发明提供了一种生产烯烃寡聚物的方法,包括在寡聚化条件下,将烯烃与基于
铬的催化剂反应。该催化剂可以是
铬化合物和
吡啶基单取代
噁唑啉化合物组合的产物。在特定实施例中,该催化剂化合物可用于将
乙烯三聚或四聚为
1-己烯、1-
辛烯或
1-己烯和1-
辛烯混合物。