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Preparation method of carboxybenzaldehyde-diethylene triamine schiff base cobalt complex

A technology of cobalt formaldehyde diethylene triamine Schiff base and formaldehyde diethylene triamine Schiff base, which is applied in the field of preparation of o-carboxybenzaldehyde diethylene acetal Schiff base cobalt complexes, achieving high yield , good reproducibility and simple process

Inactive Publication Date: 2017-12-22
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the Schiff bases of semicarbazones, pyrazoles, acylhydrazones, and hydrazides have been studied more, especially salicylaldehydes, Schiff bases containing polyhydroxyl groups, and bis-Schiff bases containing carboxyl groups. There are few reports

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  • Preparation method of carboxybenzaldehyde-diethylene triamine schiff base cobalt complex
  • Preparation method of carboxybenzaldehyde-diethylene triamine schiff base cobalt complex
  • Preparation method of carboxybenzaldehyde-diethylene triamine schiff base cobalt complex

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Embodiment

[0016] The present invention is further illustrated below in conjunction with specific examples, but the examples do not limit the protection scope of the present invention.

[0017] (1) Weigh 1.5000 g (10.0 mmol) of o-carboxybenzaldehyde and 10 mL of anhydrous methanol into a 100 mL three-neck flask and stir magnetically to obtain a colorless and transparent clear liquid.

[0018] (2) Weigh 0.3700 g (5.0 mmol) of diethylenetriamine and dissolve it in 5 mL of anhydrous methanol, and add the resulting solution dropwise to the colorless clear liquid prepared in step (1). After the dropwise addition, add 0.15 mL of glacial acetic acid was used as a catalyst, under the protection of nitrogen, at 50 °C, refluxed and stirred for 4 hours, and then stood still for 12 hours, a light yellow precipitate precipitated, filtered and washed 3 times with absolute ethanol, the amount of absolute ethanol each time was 10 mL, dried to obtain light yellow powder, which is o-carboxybenzaldehyde di...

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Abstract

The invention discloses a preparation method of a carboxybenzaldehyde-diethylene triamine schiff base cobalt complex. The preparation method comprises the following steps: by taking carboxybenzaldehyde and diethylene triamine as raw materials, taking glacial acetic acid as a catalyst and taking absolute methanol as a solvent, preparing carboxybenzaldehyde-diethylene triamine schiff base by using a solution method; then by taking the carboxybenzaldehyde-diethylene triamine schiff base and cobalt nitrate hexahydrate as raw materials and taking the absolute methanol as the solvent, preparing the carboxybenzaldehyde-diethylene triamine schiff base cobalt complex by using a hydrothermal method. The method disclosed by the invention has the advantages of simple technology, good reproducibility and higher yield; in addition, the prepared carboxybenzaldehyde-diethylene triamine and the cobalt complex thereof both have fluorescent property, and have potential application value in the fields of fluorescence probes and fluorescence analysis.

Description

technical field [0001] The invention relates to a bis-Schiff base, in particular to a preparation method of an o-carboxybenzaldehyde diethylene acetal triamine Schiff base cobalt complex containing a bis-Schiff structure. Background technique [0002] Schiff base is a class of compounds containing imine (-CH=N-) or amethymine (-CR=N-) groups produced by the condensation reaction of two types of substances containing primary amino groups and active carbonyl groups. There are different types of Schiff bases according to different classification methods. According to the structural formula, they can be divided into single Schiff bases, double Schiff bases, macrocyclic Schiff bases, heterocyclic Schiff bases, etc.; according to the group coordination mode It can be divided into amines, ketals, etc.; it can be divided into mononuclear, multinuclear, etc. according to the different coordination metals. Since the Schiff base molecule contains a C=N bond, it not only contains an un...

Claims

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Application Information

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IPC IPC(8): C07F1/08C09K11/06
CPCC07F1/08C09K11/06C09K2211/188
Inventor 刘峥李海莹王浩黄何香
Owner GUILIN UNIVERSITY OF TECHNOLOGY