A kind of unsymmetrical bispyridyl olefin compound and its preparation method and application
A bispyridyl olefin, asymmetric technology, applied in chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, chemical/physical processes, etc., can solve problems such as unsatisfactory results and difficult removal
Inactive Publication Date: 2019-09-27
HUAIBEI NORMAL UNIVERSITY
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Problems solved by technology
For many years, humans have used traditional physical adsorption and biodegradation methods to clean up organic dyes in sewage, but these methods are not ideal for most dyes
Rhodamine B is one of the commonly used organic dyes in the printing and dyeing industry, but Rhodamine B is difficult to remove through biodegradation, and it is also difficult to remove it through physical adsorption, especially when the solubility of Rhodamine B in polluted water is low when
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[0034] Non-limiting embodiments of the present invention are described as follows:
[0035] 4-Chloromethylpyridine hydrochloride, 2-amino-3-pyridinecarboxaldehyde, sodium methoxide, 5-nitro-1,3-phthalic acid group were all purchased from Shanghai Bailingwei Chemical Technology Co., Ltd. Phenylphosphine, acetonitrile, dichloromethane, methanol and N,N'-dimethylformamide were purchased from Sinopharm Chemical Reagent Co., Ltd.
[0036] 1. Preparation of intermediates
[0037] 16.40g (100mmol) of 4-chloromethylpyridine hydrochloride and 28.85g (110mmol) of triphenylphosphine were stirred and reacted under reflux in 100mL of acetonitrile for 3 hours. After the reaction was completed, cooled to room temperature and suction filtered to obtain the intermediate. The quaternary phosphonium salt was 39.65 g, and the yield was 93%.
[0038] 2. Preparation of target product
[0039] 6.75 g (150 mmol) of sodium methoxide was dissolved in 50 mL of methanol to prepare a methanol solution ...
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Abstract
The invention discloses an asymmetric bipyridyl olefin compound and its preparation method and application. The chemical structural formula of the asymmetric bipyridyl olefin compound is as follows: The preparation method of the invention has simple process, mild reaction conditions and high yield. The 1-(2-amino-3-pyridyl)-2-(4-pyridyl)-ethylene compound synthesized in the present invention can be used as an organic ligand to self-assemble with transition metal ions to form a coordination polymer [cadmium (1-( 2-amino-3-pyridyl)-2-(4-pyridyl)-ethylene)(5-nitro-1,3-phthaloyl)] n , the cadmium coordination polymer has a stable structure in water and can catalyze the photodegradation of the organic dye rhodamine B, turning it into pollution-free CO 2 and H 2 O, and can be recycled multiple times.
Description
technical field [0001] The present invention relates to an asymmetric bispyridyl olefin compound and its preparation method and application. Background technique [0002] In recent years, polypyridine compounds (for example, 4,4'-bipyridine, o-phenanthroline, etc.) and their coordination polymers have been one of the hot topics of academic research. Pyridine compounds are nitrogen-containing aromatic heterocyclic systems with conjugated π bonds. The nitrogen atoms on pyridine can form both coordination bonds and hydrogen bonds with metal ions. Polypyridine compounds have multiple coordination sites and various coordination modes, which can form coordination polymers with different structures. Such coordination polymers have attracted the attention of many disciplines due to their fascinating topological structures and broad application prospects in fluorescence, catalysis, adsorption, magnetism, and nonlinear optics. [0003] With the rapid development of modern industry a...
Claims
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IPC IPC(8): C07D213/73C08G83/00B01J31/22C02F1/30C02F101/34C02F101/36C02F101/38
CPCC02F1/30C07D213/73C08G83/008B01J31/1691C02F2101/308C02F2101/34C02F2101/36C02F2101/38C02F2305/10B01J2531/0238B01J2531/27B01J35/39
Inventor 李妮娅刘东马伟
Owner HUAIBEI NORMAL UNIVERSITY