4-Chloro-2-fluoroaniline synthesis
- Product Name:4-Chloro-2-fluoroaniline
- CAS Number:57946-56-2
- Molecular formula:C6H5ClFN
- Molecular Weight:145.56
700-37-8
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Yield:-
Reaction Conditions:
with 2 wt% Pd/C;hydrogen at 120; under 7500.75 Torr;
Steps:
31
Examples 27 to 34 investigated the effect of carbon-supported large-particle palladium catalysts on the synthesis of halogenated aromatic amines by solvent-free hydrogenation of different halogenated aromatic nitro compounds. In a 500 ml reactor, 200 g of different halogenated aromatic nitro compounds were added, 2 g of a 2 wt% palladium catalyst containing a large particle size in Example 5, shutting down the reactor; first with nitrogen replacement reactor inside the air three times, and then replaced with hydrogen three times, And then heated to 120 °C, and the hydrogen pressure rose to 1MPa, open stirring to 1000r/min; to maintain the reaction temperature and pressure until the end of the reaction; cooling cooling, remove the reactor liquid, filter separation The catalyst was used and the water in the filtrate was separated by phase separation to give the desired product Halogenated aromatic amine. The reaction product was analyzed by gas chromatography. The results are shown in Table 4.
References:
Zhejiang University of Technology;Zhang, QunFeng;Ma, Lei;Lu, ChunShan;Lu, JingHui;Li, XiaoNian CN104163764, 2016, B Location in patent:Paragraph 0050-0053
399-31-5
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59280-70-5
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348-54-9
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1602-00-2
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