Aromatic aza allyl organometallic compound and synthetic method thereof

An organic compound, heteroallyl lithium technology, applied in nickel organic compounds, iron organic compounds, etc., can solve the problems of easy deactivation, harsh synthesis conditions, complex synthesis methods, etc., and achieve good olefin catalytic activity and mild reaction conditions. , the effect of a simple synthesis method

Inactive Publication Date: 2010-12-15
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the scarcity of early transition metal resources, the storage conditions of the catalyst are harsh, easy to deactivate, and the synthesis conditions are harsh, the synthesis method is complicated, and the raw materials are not suitable for preparation.

Method used

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  • Aromatic aza allyl organometallic compound and synthetic method thereof
  • Aromatic aza allyl organometallic compound and synthetic method thereof
  • Aromatic aza allyl organometallic compound and synthetic method thereof

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Effect test

Embodiment 1

[0023] Synthesis and characterization of embodiment 1 aromatic azaallyl Fe organometallic compound

[0024] (1) Under the protection of nitrogen and ice-water bath, respectively add 0.98g (10mmol) benzyllithium and 1.3ml (10mmol) trimethylchlorosilane to about 30ml n-hexane in turn, stir, naturally warm up to room temperature, keep Stir the reaction for 15 hours, filter the precipitated lithium chloride, and remove the solvent with a vacuum pump to obtain liquid α-(trimethylsilyl)toluene. α-(trimethylsilyl)toluene can be purified by vacuum distillation;

[0025] (2) Under the protection of nitrogen and ice-water bath, 1.71g (10mmol) α-(trimethylsilyl)toluene, 5.6ml1.8M n-butyllithium solution and 1.5ml (10mmol)Me 2 NCH 2 CH 2 NMe 2 (Tetramethylethylenediamine, commonly known as Tetramethylethylenediamine) was added to about 30ml of n-hexane in turn, stirred, naturally warmed to room temperature, and kept stirring for 15 hours to obtain light yellow α-(trimethylsilyl)benzyl...

Embodiment 2

[0032] Synthesis and characterization of embodiment 2 aromatic azaallyl Ni organometallic compound

[0033] (1) Under the protection of nitrogen and ice-water bath, respectively add 0.98g (10mmol) benzyllithium and 1.3ml (10mmol) trimethylchlorosilane to about 30ml n-hexane in turn, stir, naturally warm up to room temperature, keep Stir the reaction for 15 hours, filter the precipitated lithium chloride, and remove the solvent with a vacuum pump to obtain liquid α-(trimethylsilyl)toluene. α-(trimethylsilyl)toluene can be purified by vacuum distillation;

[0034] (2) Under the protection of nitrogen and ice-water bath, 1.71g (10mmol) α-(trimethylsilyl) toluene, 5.6ml1.8M n-butyl sodium solution and 1.5ml (10mmol) Me 2 NCH 2 CH 2 NMe 2 (Tetramethylethylenediamine, commonly known as Tetramethylethylenediamine) was added to about 30ml of n-hexane in turn, stirred, naturally warmed up to room temperature, and kept stirring for 15 hours to obtain light yellow α-(trimethylsilyl)b...

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Abstract

The invention provides an aromatic aza allyl late-transition metal organic compound, which is an aromatic aza allyl metal organic compound taking Fe or Ni as central atom. The method for synthesizing the compound is as follows: alpha-(trimethylsilyl) benzyl lithium (or natrium) to carry out addition reaction with tert-butyronitrile, and the generated aromatic aza allyl lithium (or natrium) is then respectively reacted with anhydrous FeCl2 or NiCl2 to make the compound. The compound has excellent alkene catalytic activity and better application prospect in the presence of promoter methylaluminoxane.

Description

technical field [0001] The invention relates to a late-transition metal organic compound, in particular to an aromatic azaallyl late-transition metal organic compound and a synthesis method thereof. Background technique [0002] Since the birth of Ziegler-Natta catalysts, metallocene compound catalysts have defects such as harsh synthesis conditions and low total catalyst yields; in addition, the resources of pre-transition metals are scarce, and the catalysts are stored under harsh conditions and are prone to deactivation (ZieglerCatalysts, ed.G. Fink, R. Mülhaupt and H.H. Brintzinger, Springer-Verlag, Berlin. 1995). Therefore, new non-cene catalysts have attracted people's attention in recent years and become a hot spot in the research of olefin polymerization catalysts. Due to the scarcity of pre-transition metal resources, the storage conditions of the catalyst are harsh, easy to deactivate, and the synthesis conditions are harsh, the synthesis method is complicated, an...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C07F15/02C07F15/04C08F4/70C08F10/00
Inventor童红波刘滇生员海燕
OwnerSHANXI UNIV