Benzil are important organic chemical raw materials and are widely used in the synthesis of polymer curing photosensitizers and drugs.
1) prepare a kind of moth-eaten low-density polyethylene cable material, which is made of the following raw materials by weight: low-density polyethylene 46-62, polyethylene terephthalate 24-36, celluloid 18-32, Diphenylethanedione 3-7, Dimethyl fumarate 5-10, Red mud 7-14, Porcelain tailings 9-16, Dimethyl propane carboxylate 6-12, Ash calcium powder 10-15 , dimethyl phthalate 10-15. The invention combines low-density polyethylene, polyethylene terephthalate and celluloid with each other, which obviously improves the heat resistance and weather resistance of the polyethylene cable material. Dimethyl fumarate, dimethyl propane carboxylate, oriental orientalis essential oil, 3-chloropropene and other raw materials can significantly improve the anti-moth-eaten performance of polyethylene cable materials, protect cables from moths, and have good application prospects .
2) Prepare a (±)-1,2-diphenylethylenediamine. Using 1,2-diphenyl ethylenedione dioxime, using one of hydrazine hydrate, formic acid, sodium formate, ammonium formate, ammonium formate-triethylamine system as the hydrogen source, at 20 ℃-100 ℃, using lightning Nickel is used as catalyst, activated carbon is used as co-catalyst, and (±)-1,2-diphenylethylenediamine is obtained by catalytic reduction in polar solvent. The invention has the advantages of simple and extensive raw material sources, low price, safe production process, short process flow, mild reaction conditions, low cost, environmental friendliness and the like, and is very suitable for industrial production.
3) Prepare a photosensitive conductive silver paste, which is composed of the following raw materials in parts by weight: 100-106 high-dispersion conductive silver powder, 0.6-1 triterpene saponin, 12-14, 2, 2, methacrylic resin, 4-trimethyl-1,3-pentanediol monoisobutyrate 20-30, toluene 20-30, titanium nitride 0.1-0.2, diphenyl ethylene glycol 1-2, polyethylene glycol 1-2 , phthalate 2-3, polyvinyl alcohol 0.2-0.4, glass powder 10-15, ceramic powder 2-3, the high-dispersion conductive silver powder of the present invention is that the nano-silver powder is uniformly and densely coated on the polymer The surface of the microspheres can not only reduce the amount of precious metal silver powder and production cost, but also greatly improve the dispersibility and stability of the nano-silver powder.
4) Preparation of a class of 2,3-diphenyl-6-amidoquinoxaline compounds. The preparation method includes the following steps: 1) benzoin condensation reaction of benzaldehyde to generate benzoin; 2) the generated benzoin is oxidized to generate 1,2-diphenylethanedione; 3) 1,2-diphenylethanedione Then cyclization with 4-nitro-o-phenylenediamine generates 2,3-diphenyl-6-nitroquinoxaline; 4) 2,3-diphenyl-6-nitroquinoxaline is reduced Generate 2,3-diphenyl-6-aminoquinoxaline; 5) 2,3-diphenyl-6-aminoquinoxaline reacts with various acid chlorides to generate 2,3-diphenyl-6-amido Quinoxaline compounds.