2results about How to "Increase electrophilicity" patented technology

This invention belongs to the field of acyclic compound technology, specifically relating to a method for preparing tert-amyl peroxide. A tert-amyl hydrogen peroxide aqueous solution is added to a solvent and stirred to obtain a mixed solution. Under stirring conditions, p-toluenesulfonic acid and ferric phosphide are added sequentially to the mixed solution. After the addition is complete, stirring continues to produce reaction solution I. Under stirring conditions, acetic anhydride is added to reaction solution I. After the addition is complete, stirring continues to produce reaction solution II. A washing solution is added to reaction solution II, and the mixture is stirred and washed, then separated to obtain crude tert-amyl peroxide. The crude tert-amyl peroxide is washed, dried, and the solvent is removed to obtain tert-amyl peroxide. This invention avoids the problems of large amounts of hydrochloric acid produced by traditional acyl chloride methods and the corrosiveness caused by using sulfuric acid as a catalyst. Furthermore, ferric phosphide is magnetic, allowing for recycling through magnetic separation after the reaction. p-Toluenesulfonic acid can be regenerated through ion exchange resin, significantly reducing production costs.

The application provides a nitrogen-containing fused aromatic ring compound and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescent materials. In order to solve the problems existing in the prior art of organic electroluminescent materials and devices, the application provides a nitrogen-containing fused aromatic ring compound, which is applied to an organic electroluminescent device as a host material of an electron transport layer, a hole blocking layer and a light-emitting layer, so that the luminous efficiency, driving voltage and service life of the device can be effectively improved. The novel nitrogen-containing fused aromatic ring organic compound has a high triplet energy level, appropriate HOMO / LUMO energy level, high electron affinity and electron mobility, is conducive to the transmission of electrons, balances the transmission of holes and electrons, and has a high decomposition temperature and glass transition temperature and good film-forming property, so that the stability and high efficiency of the device can be effectively ensured, and the luminous efficiency of the organic electroluminescent device can be significantly improved when the compound is applied to the organic electroluminescent device as a host material of a light-emitting layer.