Highly active mono and bis-ligated iminopyridyl nickel catalysts for 1-hexene reactions

Publication date: Available online 29 December 2017 Source:Journal of Organometallic Chemistry Author(s): Guangzhi Song, Lihua Guo, Qing Du, Wenyu Kong, Weimin Li, Zhe Liu A series of mono- and bis-ligated iminopyridyl Ni(II) catalysts were prepared and characterized. The activation of these Ni(II) complexes with methylaluminoxane generated the toluene alkylation by the hexene monomers, dimers and trimmers with high activities using only 1-hexene as feedstock. Most interestingly, The bis-ligated iminopyridyl Ni(II) catalysts demonstrated much better thermal stability and showed higher activities at high temperature than the mono-ligated iminopyridyl Ni(II) catalysts. The mono-ligated and bis-ligated iminopyridyl Ni(II) catalysts also influenced the products distribution.

Source: Journal of Organometallic Chemistry - December 30, 2017 Category: Chemistry Source Type: research