ChemicalBook CAS DataBase List N-Phenyl-N'-(2-methylphenyl)-p-phenylenediamine

N-Phenyl-N'-(2-methylphenyl)-p-phenylenediamine synthesis

7synthesis methods

Product Name:N-Phenyl-N'-(2-methylphenyl)-p-phenylenediamine
CAS Number:27173-16-6
Molecular formula:C19H18N2
Molecular Weight:274.36

108-94-1 Synthesis

108-94-1
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$12.00/50g

583-60-8 Synthesis

583-60-8
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$10.00/1g

100-01-6
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$11.19/25G

N-Phenyl-N'-(2-methylphenyl)-p-phenylenediamine

27173-16-6
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Yield:27173-16-6 126 g

Reaction Conditions:

with palladium in water;N,N-dimethyl-formamide;benzene at 130; for 8 h;Molecular sieve;Reagent/catalyst;

Steps:

7-8 Example 8

To a four-necked flask equipped with a thermometer, a trap, and a condenser, 69 g (0.5 mol) of p-nitroaniline,107.8g (1.1mol) cyclohexanone, 123.2g (1.1mol) o-methylcyclohexanone,32g catalyst Pd / molecular sieve (content 5%, water content 60%), 200mL dimethylformamide and 20mL benzene,The temperature was raised to 130 ° C and the reaction was refluxed, and the water separated by the condensate was continuously removed;After 8 hours of incubation reaction, the condensate does not separate water, cools down, and filters the catalyst;The filtrate was distilled under reduced pressure, and benzene, dimethylformamide and a small excess of raw materials were distilled off.Get residue 126g,The sample GC area normalization method determined that the content of antioxidant 3100 was 93%.

References:

CN110734380,2020,A Location in patent:Paragraph 0081-0084