Synthesis method of benzo-p-dipyrrole molecule for hydrogen storage

A technology of a dipyrrole molecule and a synthesis method, which is applied in the field of synthesis of benzo-p-dipyrrole molecules, can solve the problems of low yield, slow efficiency, low output and the like, and achieves the effects of simple and convenient operation, reduced influence and avoided waste.

Pending Publication Date: 2022-07-05
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The application provides a synthesis method of benzo-p-dipyrrole molecules for hydrogen storage to solve the current The synthesis process shows the problems of low yield, low output and slow efficiency

Method used

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  • Synthesis method of benzo-p-dipyrrole molecule for hydrogen storage
  • Synthesis method of benzo-p-dipyrrole molecule for hydrogen storage
  • Synthesis method of benzo-p-dipyrrole molecule for hydrogen storage

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Experimental program
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Effect test

Embodiment 1

[0076] Step 1: In an ice-water bath, dissolve 10.0 ml of N1 molecules in 20.0 ml of concentrated sulfuric acid, and then dropwise add 6.0 ml of concentrated nitric acid to obtain a solidified first reaction solution. After cooling for 10 minutes, use deionized water for the solidified first reaction solution. After washing, the residual concentrated sulfuric acid and concentrated nitric acid were removed to obtain a solid. The solid was dried in a vacuum drying oven at 60°C for 6 hours, and then recrystallized to obtain about 13.8 g of N2 molecules.

[0077] Step 2: Under nitrogen protection, dissolve 13.8g of N2 molecules in 27.6ml of N,N-dimethylformamide. When the temperature rises to 80°C, add 41.4ml of N,N-dimethylformamide diethyl condensate. Aldehyde, then heated to 110 ° C, reacted for 20 hours and then lowered to room temperature to obtain a second reaction solution, which was naturally filtered to obtain about 17.7 g of N3 molecules.

[0078] Step 3: Dissolve 17.7g o...

Embodiment 2

[0080] Step 1: In an ice-water bath, dissolve 5.0 ml of N1 molecules in 12.0 ml of concentrated sulfuric acid, and then dropwise add 5.0 ml of concentrated nitric acid to obtain a solidified first reaction solution, and after cooling for 10 minutes, use deionized water for the solidified first reaction solution After washing, the residual concentrated sulfuric acid and concentrated nitric acid were removed to obtain a solid. The solid was dried in a vacuum drying oven at 60°C for 4 hours, and then recrystallized to obtain about 7.1 g of N2 molecules.

[0081] Step 2: Under nitrogen protection, dissolve 7.1g of N2 molecules in 20.0ml of N,N-dimethylformamide. When the temperature rises to 85°C, add 22.0ml of N,N-dimethylformamide diethyl condensate. Aldehyde, then heated to 115°C, reacted for 24 hours and then lowered to room temperature to obtain a second reaction solution, which was naturally filtered to obtain about 10.0 g of N3 molecules.

[0082] Step 3: Dissolve 10.0g N3 ...

Embodiment 3

[0084] Step 1: Dissolve 1.2ml of N1 molecule in 3.0ml of concentrated sulfuric acid in an ice-water bath, and then add 1.5ml of concentrated nitric acid dropwise to obtain a solidified first reaction solution. After cooling for 5 minutes, use deionized water for the solidified first reaction solution. After washing, the residual concentrated sulfuric acid and concentrated nitric acid were removed to obtain a solid, which was dried in a vacuum drying oven at 60° C. for 3 hours and then recrystallized to obtain about 1.67 g of N2 molecules.

[0085]Step 2: Under nitrogen protection, dissolve 1.67g of N2 molecules in 5.0ml of N,N-dimethylformamide. When the temperature rises to 90°C, add 5.8ml of N,N-dimethylformamide diethyl condensate. Aldehyde, then heated to 120°C, reacted for 20h and then lowered to room temperature to obtain a second reaction solution, which was naturally filtered to obtain about 2.43g of N3 molecules.

[0086] Step 3: Dissolve 2.43g of N3 molecules in 5.0m...

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Abstract

The invention provides a synthesis method of benzo-p-dipyrrole molecules for hydrogen storage, and belongs to the technical field of hydrogen storage of organic heterocyclic aromatic hydrocarbon molecules. The synthesis method comprises the following steps: preparing benzo-p-dipyrrole molecules by taking N1 molecules as initial reactants; wherein the chemical structural formula of the N1 molecule is shown in the specification, and the chemical structural formula of the benzo-p-dipyrrole molecule is shown in the specification. The N1 molecule is adopted as an initial reactant, so that by-products in the reaction process are reduced, and the yield of an intermediate product and the reaction success rate are greatly improved; finally, the synthesis yield, the yield and the efficiency of the benzo-p-dipyrrole molecule are greatly improved.

Description

technical field [0001] The application belongs to the technical field of organic heterocyclic aromatic hydrocarbon molecules for hydrogen storage, and in particular relates to a method for synthesizing benzodipyrrole molecules for hydrogen storage. Background technique [0002] The benzodipyrrole molecule described in the present application is an organic heterocyclic aromatic hydrocarbon molecule that can be used for hydrogen storage. In the article "Synthesis and Photoelectric Properties of Novel Narrow Band Gap Polysquarate Cyanine", it is mentioned that the benzodipyrrole molecule can be used in the field of solar cells, but the synthesis process of this molecule shows low yield, low yield and high efficiency The lack of slowness makes it unable to meet the needs of industrial production and also limits its practical application. SUMMARY OF THE INVENTION [0003] The present application provides a method for synthesizing benzodipyrrole molecules for hydrogen storage t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/04
CPCC07D487/04
Inventor 姜召龚翔
Owner XI AN JIAOTONG UNIV
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