Preparation method of C14 side chain-substituted fluorinated diamine-containing monomer
A technology of fluorine-containing diamine and C14-FN, which is applied to the preparation of carboxylic acid amides, the preparation of organic compounds, chemical instruments and methods, etc., can solve the problems that limit the development of polyimide, the molecular weight of diamine monomers is large, and the nitro Problems such as difficulty in reduction can be achieved to improve light transmittance, high synthesis yield, and reduce order and symmetry
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0027] Step 1: Add 1.2L DMAC, 1000g 2,2-bis(3-amino-4-sodium phenolate) hexafluoropropane and 1347g bromo-C14alkane to a 10L four-necked reaction flask in sequence, start stirring and heating, and maintain React at 80°C for 2-3 hours. After the reaction of the raw materials is completed, turn off the heating, pour out the reaction liquid, and filter while it is hot. The upper layer of filter cake is the by-product sodium bromide, which is collected and stored. The filtrate is naturally cooled to room temperature, and then added to 2.4 Quenched in L water, a large amount of solids will appear at this time, filter with suction, wash the filter cake with 3.5L of water, and dry the filter cake in vacuum to obtain 1665g of pure C14-FN.
[0028] Step 2: Add 1665g C14-FN and 550mL NMP to a 10L four-necked reaction flask, start stirring, then slowly add a mixture of 812g m-nitrobenzoyl chloride and 550mL NMP dropwise, and control the concentration of the reaction solution during the dr...
Embodiment 2
[0031] Step 1: Add 24.3L DMAC, 1000g 2,2-bis(3-amino-4-sodium phenolate)hexafluoropropane and 6735g bromo-C14alkane to the 30L double-layer glass reactor, start stirring and heating, Maintain the reaction at 166°C for 2-3 hours. After the reaction of the raw materials is completed, turn off the heating, release the reaction liquid, and filter while it is hot. The upper layer of filter cake is the by-product sodium bromide, which is collected and stored. The filtrate is naturally cooled to room temperature, and then added to 48.6 Quenched in L water, a large amount of solids will appear at this time, filter with suction, wash the filter cake with 3.5L of water, and dry the filter cake in vacuum to obtain 1757g of pure C14-FN.
[0032] Step 2: Add 1757g C14-FN and 11.5LNMP to the 30L double-layer glass reactor, start stirring and jacket to cool down, when the temperature of the reaction solution drops to 0°C, slowly add 4286g m-nitrobenzyl to it The mixed solution of acid chlori...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com