Unlock instant, AI-driven research and patent intelligence for your innovation.

Dihydroindenyl fluorene and its synthesis method

A dihydroindeno, indeno-based technology, which is applied in the field of dihydroindeno-indenofluorene and its synthesis, can solve problems such as optical properties to be tested, and achieve the effects of stable product structure, simple operation, and easy-to-obtain raw materials

Active Publication Date: 2015-12-30
SHANGHAI JUTONG IND
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the reported studies, the connection between fluorene and anthracene mostly occurs at the 2 or 7 position of fluorene, while the 9-position bianthracene compound of fluorene is rarely reported, and its optical properties need to be tested

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dihydroindenyl fluorene and its synthesis method
  • Dihydroindenyl fluorene and its synthesis method
  • Dihydroindenyl fluorene and its synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The preparation of 6,12-dihydroindeno[1,2-b]fluorene-6,12-diol: add indeno[1,2-b] in a 50 ml three-necked flask equipped with a reflux condenser 0.28 g of fluorene-6,12-dione, 20 ml of absolute ethanol; slowly dropwise add 150 mg of sodium borohydride in absolute ethanol solution in an ice-water bath, remove the ice bath after the addition, and react at room temperature for 3 hours. After the reaction is complete, transfer the solution to a 250 ml beaker, slowly add 2M dilute hydrochloric acid in an ice-water bath until the system is weakly acidic; filter with suction, wash the filter residue with a small amount of saturated sodium bicarbonate solution, water, and absolute ethanol in sequence; vacuum-dry the filter residue Afterwards, a white solid was obtained, that is, a crude product, 0.25 g, and the yield was 87%.

[0043] The preparation of 6,12-bis(9-anthracenyl)-6,12-dihydroindeno[1,2-b]fluorene: add 6,12 -50 mg of dihydroindeno[1,2-b]fluorene-6,12-diol, 68 mg o...

Embodiment 2

[0045] The preparation of 6,12-dihydroindeno[1,2-b]fluorene-6,12-diol: add indeno[1,2-b] in a 250 ml three-necked flask equipped with a reflux condenser 1.4 g of fluorene-6,12-dione, 100 ml of absolute ethanol; slowly dropwise add 0.75 g of sodium borohydride in absolute ethanol solution in an ice-water bath, remove the ice bath after the addition, and react at room temperature for 3 hours. After the reaction is complete, transfer the solution to a 250 ml beaker, slowly add 2M dilute hydrochloric acid in an ice-water bath until the system is weakly acidic; filter with suction, wash the filter residue with a small amount of saturated sodium bicarbonate solution, water, and absolute ethanol in sequence; vacuum-dry the filter residue Afterwards, a white solid was obtained, that is, a crude product, 1.2 g, with a yield of 86%.

[0046] The preparation of 6,12-bis(9-anthracenyl)-6,12-dihydroindeno[1,2-b]fluorene: add 6,12 -0.20 g of dihydroindeno[1,2-b]fluorene-6,12-diol, 0.27 g o...

Embodiment 3

[0048]The preparation of 6,12-dihydroindeno[1,2-b]fluorene-6,12-diol: add indeno[1,2-b] in a 500 ml three-necked flask equipped with a reflux condenser 2.8 g of fluorene-6,12-dione, 200 ml of absolute ethanol; slowly add 1.5 g of sodium borohydride in absolute ethanol dropwise in an ice-water bath, remove the ice bath after the addition, and react at room temperature for 4 hours. After the reaction, transfer the solution to a 500ml beaker, slowly add 2M dilute hydrochloric acid in an ice-water bath until the system is weakly acidic; filter with suction, wash the filter residue with a small amount of saturated sodium bicarbonate solution, water, and absolute ethanol in sequence; vacuum-dry the filter residue Afterwards, a white solid was obtained, that is, a crude product, 2.2 g, with a yield of 78%.

[0049] The preparation of 6,12-bis(9-anthracenyl)-6,12-dihydroindeno[1,2-b]fluorene: add 6,12 -1.0 g of dihydroindeno[1,2-b]fluorene-6,12-diol, 1.36 g of anthracene, 1.1 g of tr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to indan-acetylaminofluorene and a synthetic method thereof. The structural formula of a compound is as shown in the specification. The compound disclosed by the invention has larger distortion effects so as to have the performance advantages of good luminescence wavelength, brightness, luminescence efficiency, color purity and the like. Indan-acetylaminofluorene disclosed by the invention is easily-available in raw material, very simple in operation and convenient in synthesis, has the yield of about 40%, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to a dihydroindenyl fluorene and a synthesis method thereof. Background technique [0002] Organic light emitting diodes (organic light emitting diodes, OLEDs) flexible display technology due to its thin thickness, wide viewing angle, all solid state (shock and drop resistance), fast response (no smear), good low temperature characteristics, high luminous efficiency, low voltage DC drive , low power consumption and flexible display, and is regarded as the next generation of flat panel display technology by the industry. Major manufacturers are actively developing OLEDs technology: Samsung and LG in South Korea, BOE in the Mainland, Sony and Panasonic in Japan have invested a lot of manpower and material resources in this technology. [0003] The full-color display methods of OLEDs are usually divided into three types according to the type of panel: RGB pixels emit light independently, light color conversion (ColorConversion) and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07C35/44C07C29/143C07C13/62C07C2/86C09K11/06
CPCC07C2/864C07C13/62C07C29/143C07C35/44C07C2603/40C09K11/06C09K2211/1011
Inventor 胡天泽万文胡清阳王静蒋海珍郝健
Owner SHANGHAI JUTONG IND