3,3'-Diaminobenzophenone synthesis
- Product Name:3,3'-Diaminobenzophenone
- CAS Number:611-79-0
- Molecular formula:C13H12N2O
- Molecular Weight:212.25
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Yield: 83%
Reaction Conditions:
Stage #1:benzophenone with dinitrogen pentoxide in dichloromethane at 30; for 5 h;Molecular sieve;
Stage #2: with hydrogen;nickel in dichloromethane under 11251.1 Torr; for 5 h;Temperature;Pressure;
Steps:
1; 2; 3 Example 2
At 30 ° C, benzophenone 91 g (0.5 mol) was added to a 2 L titanium alloy pressure reactor.Add 50g of HZSM-4 catalyst, solvent dichloromethane 200mL,After stirring and dissolving,Add 550ml,2mol/L of dinitrogen peroxide in methylene chloride solution,The reaction was stirred for 5 h.After the completion of the reaction, 2 g of nickel powder was added, and hydrogen gas was introduced to bring the pressure in the reactor to 1.5 MPa, and the mixture was stirred and reacted for 5 hours.After the completion of the reaction, the reaction mixture was filtered, and the filtrate was evaporated to dryness to give crude 3,3'-diaminobenzophenone. The crude product was recrystallized from a solution of ethanol:water = 1:2 to give white powdery crystals, which, after drying, yielded 88.9 g of 3,3'-diaminobenzophenone.In the present Example 3, the yield of 3'-diaminobenzophenone was 83%, and the purity was 99.2%
References:
Hongwei High-tech Materials Co., Ltd.;Chengdu Zhengwei New Materials Research And Development Co., Ltd.;Huang Yuhong;Bu Gonggaofamingren CN109400481, 2019, A Location in patent:Paragraph 0035-0044; 0050-0055; 0056-0061
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![Ethanamine, N-[(3,5-dichlorophenyl)methylene]-2,2-diethoxy-](/CAS/20210305/GIF/1000210-73-0.gif)
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611-79-0
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611-79-0
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