The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 23, 2016
Filed:
Dec. 01, 2011
Jun Liu, Beijing, CN;
Mingfang Zheng, Beijing, CN;
Weizhen LI, Beijing, CN;
Haiying Zhang, Beijing, CN;
Huaijie Wang, Beijing, CN;
Yu Zhou, Beijing, CN;
Tonglin LI, Beijing, CN;
Lan Zhao, Beijing, CN;
Hongfei Wu, Beijing, CN;
Mingjun Xie, Beijing, CN;
Chunhong Wu, Beijing, CN;
Zhiguang Jia, Beijing, CN;
Yanping Qi, Beijing, CN;
Jilong Wang, Beijing, CN;
Jun Liu, Beijing, CN;
Mingfang Zheng, Beijing, CN;
Weizhen Li, Beijing, CN;
Haiying Zhang, Beijing, CN;
Huaijie Wang, Beijing, CN;
Yu Zhou, Beijing, CN;
Tonglin Li, Beijing, CN;
Lan Zhao, Beijing, CN;
Hongfei Wu, Beijing, CN;
Mingjun Xie, Beijing, CN;
Chunhong Wu, Beijing, CN;
Zhiguang Jia, Beijing, CN;
Yanping Qi, Beijing, CN;
Jilong Wang, Beijing, CN;
Abstract
Provided are a process for preparing an N ortho acyl substituted nitrogen-containing heterocyclic compound and an aminal iron (II) complex thereof, and the use of the complexes obtained by the process in an olefin oligomerization catalyst. The N ortho acyl substituted nitrogen-containing heterocyclic compound in the present invention is for example 2-acyl-1,10-phenanthroline or 2,6-diacetyl pyridine as shown in formula b, and the N ortho acyl substituted nitrogen-containing heterocyclic compound in the present invention is produced by a reaction of a precursor thereof in a substituted or unsubstituted nitrobenzene. Preferably the precursor shown in formula I in the present invention is produced by 1,10-phenanthroline reacting with trialkyl aluminum, or a halogenoalkyl aluminum RAIX, or a substituted or unsubstituted benzyl lithium Ph'CHLi, followed by hydrolysis. The preparation method provided in the present invention has a few synthetic steps, an easy process, a low toxic effect, and reduces the preparation costs of the catalyst, and has a promising outlook in the industrial application.