Background and overview[1]
Bis(2-diphenylphosphenyl) ether is a ligand for the ruthenium-catalyzed green amine synthesis process (amines and alcohols are synthesized through hydrogen borrowing reactions). Bis(2-diphenylphosphenyl) ether can be prepared by the one-step reaction of diphenyl ether and diphenylphosphine chloride.
Preparation[1]
(1) Dilute diphenyl ether (0.02mol) in hexane (50mL), add n-BuLi (42mmol) hexane solution dropwise at -78°C (complete the addition in about 5 minutes), and react 1h, then rise to room temperature (about 25℃), and continue to stir the reaction for 16h;
(2) Then add 15 mL of n-hexane solution of diphenylphosphine chloride (42 mmol) dropwise into the reaction system of step (1) under an ice-water bath (complete the addition within about 5 minutes), and then continue to add at room temperature ( The reaction was stirred for 16 hours at about 25°C); the solvent was removed by rotary evaporation to obtain a light yellow viscous oil, which was washed with acetone and dried under vacuum to obtain 9.4g of white powder, which is bis(2-diphenylphosphophenyl) ether: The yield is 87%, 1H NMR (MHz, C6D6) δ: 7.41-7.26 (m, 8H, o-PPh2), 7.08-6.93 (m, 14H, m-PPh2, p- PPh2, phenylate), 6.91-6.87 Original curing agent imported from Germany N75 (t, J = 8Hz, 2H, phenylate), 6.72-6.66 (m, 4H, phenylate) ppm.
Apply[2-3]
Application 1,
CN201910479617.9 provides an insulating material for sensors and a preparation method thereof, which relates to the technical field of sensor production. The insulating material is made of the following raw materials by weight: 40-50 parts of EPDM rubber, 15-20 parts of silicone rubber, 8-12 parts of polyimide, 4-hydroxy-8-methoxyquinoline 6-8 parts of -3-carboxylic acid, 4-6 parts of bis(2-diphenylphosphenyl) ether, 2-4 parts of sodium dodecyl diphenyl ether disulfonate, bis(N,N-di 7-9 parts of methylhydrazinecarbonyl-4-aminophenyl)methane, 5-7 parts of distearyl thiodipropionate, 3-5 parts of 2,6-di-tert-butyl-p-cresol, vulcanization 2-4 parts of agent, 1-3 parts of stabilizer and 2-4 parts of dispersing agent. The invention overcomes the shortcomings of the existing technology. It can not only effectively improve the insulation effect of the insulating material, prevent the sensor from leakage or short circuit, etc., the sensor has high detection accuracy and high safety, but can also effectively improve its anti-aging performance and prevent it from being damaged. Aging occurs due to the influence of light, heat and oxygen. The insulation material has excellent overall performance and long service life, so it is suitable for promotion.
Application 2,
CN201310611365.3 discloses a green-emitting binuclear Cu(I) complex luminescent material and a preparation method thereof. The green luminescent complex of the present invention is obtained by complexing copper bromide with a ligand. Its molecular structure is [Cu(POP)Br]2, in which POP is an electrically neutral ligand bis(2-diphenylphosphorus). Phenyl) ether, the bridge ligand bromide ion connects two metal ion centers to form a binuclear structure molecule. The complex not only has the advantages of easy purification of small molecules and high luminous efficiency, but also has high thermal stability. The material is obtained by direct mixing reaction of cuprous bromide and ligand in methylene chloride solution. It has the advantages of simple process, simple equipment, easily available raw materials and low cost. The material can be used as a photoluminescent green light material or as a green light-emitting layer material in an electroluminescent device composed of multi-layer organic materials.
