Method for synthesizing 3,3'-(p-phenyleneoxy)di(2,4,5-triphenyl)cyclopentadiene

A technology of triphenylcyclopentadienone and diphenylacetone, applied in the field of synthesis 3, to achieve the effect of good processing performance
CN101100420BInactive Publication Date: 2010-12-29INST OF CHEM CHINESE ACAD OF SCI
2 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF CHEM CHINESE ACAD OF SCI
Publication Date
2010-12-29
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A method for synthesizing 3,3-(phenylene oxide)di(2, 4, 5-triphenyl)cyclopentadienyl ketone is carried out by Foury reacting phenyl ether with phenacerine with anhydrous aluminum muriate as catalyst and methylene dichloride as solvent to prepare 4-phenacelate withIstructure, oxidizing 4-phenacelate into 4-phenyl-oxalate withIIstructure with potassium permanganate as oxidant and under existence ofphase-transferring catalyst, and condensing 4-phenyl-oxalate withIIstructure with 1,3-diphenyl acetone under alkali catalyzing. It's cheap, efficient and non-toxic.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for synthesizing 3,3'-(oxybis-1,4-phenylene)bis(2,4,5-triphenylcyclopentadienone).

[0002] Background technique

[0003] Synthesizing polymers with good thermal stability, processability, film formation and high hardness is a very meaningful and challenging subject ((1) Stone, D.S.; Martynenko, Z. Polymers in Electronics, Fundamentals and applications; Elsevier: New York, 1989. (2) Electronic and Photoonic Applications of Polymers; Bowden, M.J., Turner, S.R., Eds.; ACS Advances in Chemistry Series 218; American Chemical Society: Washington, DC, 1988. (3 ) Kumar U., Neenan, T.X. Macromolecules, 1995, 28, 124-130.). Because polymers with these properties play a very important role in aviation, aerospace, electronics, machinery and other fields. Increasing the content of aromatic rings in the molecular structure, avoiding long aliphatic chains, and increasing crosslinking density are all effective means to improve the ...

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