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A kind of thiophene[3,4-f]isobenzofuran-4,8-dione and preparation method thereof

A 4-f, thiophene technology, applied in the fields of semiconductor/solid-state device manufacturing, organic chemistry, electric solid-state devices, etc., can solve the problems of unreported FTD-based polymers

Active Publication Date: 2021-04-27
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the corresponding FTD-based polymers have not been reported so far

Method used

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  • A kind of thiophene[3,4-f]isobenzofuran-4,8-dione and preparation method thereof
  • A kind of thiophene[3,4-f]isobenzofuran-4,8-dione and preparation method thereof
  • A kind of thiophene[3,4-f]isobenzofuran-4,8-dione and preparation method thereof

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Experimental program
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Embodiment 1

[0029] The preparation method of thiophene[3,4-f]isobenzofuran-4,8-dione, the specific process is as follows:

[0030]

[0031] Synthesis of 2,5-dibromo-3,4-furandicarboxylic acid (2)

[0032] Furan-3,4-dicarboxylic acid (1) (16.7 mmol, 2.61 g) and 30 mL of glacial acetic acid were added to a 100 mL three-necked flask equipped with a constant pressure dropping funnel, a reflux condenser and a tail gas absorption device, and the temperature was raised to 50 o C was stirred for 0.5 h and cooled to room temperature. Liquid bromine (133.6 mmol, 21.4 g, 6.85 mL) was slowly added dropwise. After the addition was complete, the mixture was warmed to reflux and stirred overnight. Cool to room temperature, spin out most of the solvent under reduced pressure, add a small amount of deionized water, and slowly add sodium thiosulfate until the reaction no longer produces gas, filter, and rinse the filter cake with a small amount of deionized water three times. The resulting solid was ...

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Abstract

A thiophene[3,4-f]isobenzofuran-4,8-dione and a preparation method thereof, belonging to the technical field of organic synthesis, wherein the thiophene[3,4-f]isobenzofuran-4, The structure of 8-diketone is as follows: EH is furan. The smaller volume and stronger electronegativity make the newly synthesized FTD unit have better conjugation plane and stronger electron-withdrawing property than BDD unit, which is beneficial to the polymerization of preparation The energy levels of the non-fullerene acceptors and small molecule acceptors are more closely matched.

Description

technical field [0001] The invention belongs to the field of organic synthesis, and in particular relates to thiophene[3,4-f]isobenzofuran-4,8-dione and a preparation method thereof. Background technique [0002] Polymer Solar Cells (PSCs) have: (1) polymer materials are light in weight and have good flexibility; (2) polymer materials are easy to design, tailor and prepare chemical structures, and have no resource stock limit; (3) ) battery devices can be prepared by solution processing methods such as screen printing, inkjet printing, and spin coating, which are simple and low in cost; Potential third-generation solar cells. Organic solar cells mainly include fullerene solar cells and non-fullerene solar cells according to different acceptor materials. Early organic solar cells were basically based on donor-acceptor conjugated polymers and fullerene derivatives (PC 61 BM,PC 71 BM, F-PCBM, etc.) fullerene organic solar cells. Although the photoelectric conversion effici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D495/04C08G61/12H01L51/42H01L51/46
CPCY02E10/549
Inventor 高跃岳周燕香谭付瑞张伟风
Owner HENAN UNIVERSITY